39990524 has 12 divisors (see below), whose sum is σ = 79981104. Its totient is φ = 17138784.

The previous prime is 39990521. The next prime is 39990541. The reversal of 39990524 is 42509993.

39990524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

39990524 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39990521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714089 + ... + 714144.

It is an arithmetic number, because the mean of its divisors is an integer number (6665092).

Almost surely, 2^39990524 is an apocalyptic number.

It is an amenable number.

39990524 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39990524 is a wasteful number, since it uses less digits than its factorization.

39990524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428244 (or 1428242 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 39990524 is about 6323.8061323858. The cubic root of 39990524 is about 341.9681809823.

The spelling of 39990524 in words is "thirty-nine million, nine hundred ninety thousand, five hundred twenty-four".