399092364 has 72 divisors (see below), whose sum is σ = 1109755920. Its totient is φ = 120922560.

The previous prime is 399092347. The next prime is 399092381. The reversal of 399092364 is 463290993.

It is an interprime number because it is at equal distance from previous prime (399092347) and next prime (399092381).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43752 + ... + 52080.

Almost surely, 2^399092364 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 399092364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554877960).

399092364 is an abundant number, since it is smaller than the sum of its proper divisors (710663556).

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

399092364 is a wasteful number, since it uses less digits than its factorization.

399092364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372 (or 8345 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 399092364 is about 19977.2962134519. The cubic root of 399092364 is about 736.2485844108.

The spelling of 399092364 in words is "three hundred ninety-nine million, ninety-two thousand, three hundred sixty-four".