399659117310 has 32 divisors (see below), whose sum is σ = 1065757646880. Its totient is φ = 106575764544.

The previous prime is 399659117269. The next prime is 399659117323. The reversal of 399659117310 is 13711956993.

399659117310 is a `hidden beast` number, since 3 + 9 + 9 + 6 + 591 + 17 + 31 + 0 = 666.

It is a super-2 number, since 2×399659117310² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 740109207 + ... + 740109746.

It is an arithmetic number, because the mean of its divisors is an integer number (33304926465).

Almost surely, 2^399659117310 is an apocalyptic number.

399659117310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

399659117310 is an abundant number, since it is smaller than the sum of its proper divisors (666098529570).

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

399659117310 is a wasteful number, since it uses less digits than its factorization.

399659117310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480218969 (or 1480218963 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The spelling of 399659117310 in words is "three hundred ninety-nine billion, six hundred fifty-nine million, one hundred seventeen thousand, three hundred ten".