399356800 has 48 divisors (see below), whose sum is σ = 986544000. Its totient is φ = 159741440.

The previous prime is 399356779. The next prime is 399356807. The reversal of 399356800 is 8653993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399356807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59200 + ... + 65599.

It is an arithmetic number, because the mean of its divisors is an integer number (20553000).

Almost surely, 2^399356800 is an apocalyptic number.

It is an amenable number.

399356800 is an abundant number, since it is smaller than the sum of its proper divisors (587187200).

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

399356800 is a wasteful number, since it uses less digits than its factorization.

399356800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124823 (or 124806 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 399356800 is about 19983.9135306376. The cubic root of 399356800 is about 736.4111596806.

The spelling of 399356800 in words is "three hundred ninety-nine million, three hundred fifty-six thousand, eight hundred".