399876024072 has 64 divisors (see below), whose sum is σ = 1142720916480. Its totient is φ = 114228493632.

The previous prime is 399876024061. The next prime is 399876024091. The reversal of 399876024072 is 270420678993.

It is a super-2 number, since 2×399876024072² (a number of 24 digits) contains 22 as substring.

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, 666483 + ... + 1115325.

It is an arithmetic number, because the mean of its divisors is an integer number (17855014320).

Almost surely, 2^399876024072 is an apocalyptic number.

It is an amenable number.

399876024072 is an abundant number, since it is smaller than the sum of its proper divisors (742844892408).

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

399876024072 is a wasteful number, since it uses less digits than its factorization.

399876024072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454162 (or 454158 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 57.

The spelling of 399876024072 in words is "three hundred ninety-nine billion, eight hundred seventy-six million, twenty-four thousand, seventy-two".