39428325 has 72 divisors (see below), whose sum is σ = 77762880. Its totient is φ = 19008000.

The previous prime is 39428309. The next prime is 39428327. The reversal of 39428325 is 52382493.

It is not a de Polignac number, because 39428325 - 2⁴ = 39428309 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 Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39428325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39428327) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 98125 + ... + 98525.

It is an arithmetic number, because the mean of its divisors is an integer number (1080040).

Almost surely, 2^39428325 is an apocalyptic number.

It is an amenable number.

39428325 is a deficient number, since it is larger than the sum of its proper divisors (38334555).

39428325 is a wasteful number, since it uses less digits than its factorization.

39428325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 451 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 39428325 is about 6279.1977990823. The cubic root of 39428325 is about 340.3581145994.

The spelling of 39428325 in words is "thirty-nine million, four hundred twenty-eight thousand, three hundred twenty-five".