399710504 has 16 divisors (see below), whose sum is σ = 749865600. Its totient is φ = 199746352.

The previous prime is 399710501. The next prime is 399710561. The reversal of 399710504 is 405017993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (399710501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3209 + ... + 28455.

It is an arithmetic number, because the mean of its divisors is an integer number (46866600).

Almost surely, 2^399710504 is an apocalyptic number.

It is an amenable number.

399710504 is a deficient number, since it is larger than the sum of its proper divisors (350155096).

399710504 is a wasteful number, since it uses less digits than its factorization.

399710504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27232 (or 27228 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 399710504 is about 19992.7612900269. The cubic root of 399710504 is about 736.6285047649.

The spelling of 399710504 in words is "three hundred ninety-nine million, seven hundred ten thousand, five hundred four".