1958245 has 8 divisors (see below), whose sum is σ = 2357784. Its totient is φ = 1561344.

The previous prime is 1958237. The next prime is 1958249. The reversal of 1958245 is 5428591.

It can be written as a sum of positive squares in 4 ways, for example, as 972196 + 986049 = 986^2 + 993^2 .

It is a sliding number, since 1958245 = 5120 + 1953125 and 1/5120 + 1/1953125 = 0.0001958245.

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

It is a cyclic number.

It is not a de Polignac number, because 1958245 - 2³ = 1958237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1958245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (294723).

2^1958245 is an apocalyptic number.

It is an amenable number.

1958245 is a deficient number, since it is larger than the sum of its proper divisors (399539).

1958245 is an equidigital number, since it uses as much as digits as its factorization.

1958245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319.

The product of its digits is 14400, while the sum is 34.

The square root of 1958245 is about 1399.3730739156. The cubic root of 1958245 is about 125.1091313617.

It can be divided in two parts, 1958 and 245, that multiplied together give a triangular number (479710 = T₉₇₉).

The spelling of 1958245 in words is "one million, nine hundred fifty-eight thousand, two hundred forty-five".