399500500 has 48 divisors (see below), whose sum is σ = 997161984. Its totient is φ = 136970400.

The previous prime is 399500483. The next prime is 399500513. The reversal of 399500500 is 5005993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53572 + ... + 60571.

It is an arithmetic number, because the mean of its divisors is an integer number (20774208).

Almost surely, 2^399500500 is an apocalyptic number.

It is an amenable number.

399500500 is an abundant number, since it is smaller than the sum of its proper divisors (597661484).

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

399500500 is a wasteful number, since it uses less digits than its factorization.

399500500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114169 (or 114157 counting only the distinct ones).

The product of its (nonzero) digits is 6075, while the sum is 31.

The square root of 399500500 is about 19987.5085991226. The cubic root of 399500500 is about 736.4994763551.

The spelling of 399500500 in words is "three hundred ninety-nine million, five hundred thousand, five hundred".