1942558245 has 12 divisors (see below), whose sum is σ = 3367101036. Its totient is φ = 1036031040.

The previous prime is 1942558217. The next prime is 1942558249. The reversal of 1942558245 is 5428552491.

1942558245 is a `hidden beast` number, since 1 + 9 + 4 + 25 + 582 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 302551236 + 1640007009 = 17394^2 + 40497^2 .

It is not a de Polignac number, because 1942558245 - 2⁵ = 1942558213 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 43167961 = 1942558245 / (1 + 9 + 4 + 2 + 5 + 5 + 8 + 2 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1942558245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942558249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21583936 + ... + 21584025.

It is an arithmetic number, because the mean of its divisors is an integer number (280591753).

Almost surely, 2^1942558245 is an apocalyptic number.

1942558245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1942558245 is a deficient number, since it is larger than the sum of its proper divisors (1424542791).

1942558245 is a wasteful number, since it uses less digits than its factorization.

1942558245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43167972 (or 43167969 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 1942558245 is about 44074.4625038128. The cubic root of 1942558245 is about 1247.7416813880.

It can be divided in two parts, 194255 and 8245, that added together give a square (202500 = 450²).

The spelling of 1942558245 in words is "one billion, nine hundred forty-two million, five hundred fifty-eight thousand, two hundred forty-five".