399457959000 has 128 divisors (see below), whose sum is σ = 1319621284800. Its totient is φ = 100256102400.

The previous prime is 399457958993. The next prime is 399457959023. The reversal of 399457959000 is 959754993.

It is a super-2 number, since 2×399457959000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3865255 + ... + 3967254.

Almost surely, 2^399457959000 is an apocalyptic number.

399457959000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

399457959000 is an abundant number, since it is smaller than the sum of its proper divisors (920163325800).

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

399457959000 is a wasteful number, since it uses less digits than its factorization.

399457959000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832550 (or 7832536 counting only the distinct ones).

The product of its (nonzero) digits is 13778100, while the sum is 60.

The spelling of 399457959000 in words is "three hundred ninety-nine billion, four hundred fifty-seven million, nine hundred fifty-nine thousand".