39242925 has 18 divisors (see below), whose sum is σ = 70288842. Its totient is φ = 20929440.

The previous prime is 39242921. The next prime is 39242927. The reversal of 39242925 is 52924293.

It can be written as a sum of positive squares in 3 ways, for example, as 8838729 + 30404196 = 2973^2 + 5514^2 .

It is not a de Polignac number, because 39242925 - 2² = 39242921 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 39242925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39242921) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 86982 + ... + 87431.

Almost surely, 2^39242925 is an apocalyptic number.

It is an amenable number.

39242925 is a deficient number, since it is larger than the sum of its proper divisors (31045917).

39242925 is a wasteful number, since it uses less digits than its factorization.

39242925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174429 (or 174421 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 39242925 is about 6264.4173711527. The cubic root of 39242925 is about 339.8237985513.

The spelling of 39242925 in words is "thirty-nine million, two hundred forty-two thousand, nine hundred twenty-five".