1642958245 has 8 divisors (see below), whose sum is σ = 1993702680. Its totient is φ = 1299598080.

The previous prime is 1642958237. The next prime is 1642958263. The reversal of 1642958245 is 5428592461.

It can be written as a sum of positive squares in 4 ways, for example, as 30052324 + 1612905921 = 5482^2 + 40161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1642958245 - 2³ = 1642958237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1642958195 and 1642958204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1845576 + ... + 1846465.

It is an arithmetic number, because the mean of its divisors is an integer number (249212835).

Almost surely, 2^1642958245 is an apocalyptic number.

It is an amenable number.

1642958245 is a deficient number, since it is larger than the sum of its proper divisors (350744435).

1642958245 is an equidigital number, since it uses as much as digits as its factorization.

1642958245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692135.

The product of its digits is 691200, while the sum is 46.

The square root of 1642958245 is about 40533.4213335119. The cubic root of 1642958245 is about 1179.9823431716.

The spelling of 1642958245 in words is "one billion, six hundred forty-two million, nine hundred fifty-eight thousand, two hundred forty-five".