39925872 has 160 divisors (see below), whose sum is σ = 133404160. Its totient is φ = 11337408.

The previous prime is 39925871. The next prime is 39925909. The reversal of 39925872 is 27852993.

39925872 is a `hidden beast` number, since 399 + 258 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39925871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244863 + ... + 245025.

It is an arithmetic number, because the mean of its divisors is an integer number (833776).

Almost surely, 2^39925872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39925872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66702080).

39925872 is an abundant number, since it is smaller than the sum of its proper divisors (93478288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39925872 is an equidigital number, since it uses as much as digits as its factorization.

39925872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 175 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 39925872 is about 6318.6922697660. The cubic root of 39925872 is about 341.7837968690.

The spelling of 39925872 in words is "thirty-nine million, nine hundred twenty-five thousand, eight hundred seventy-two".