399240056010 has 16 divisors (see below), whose sum is σ = 958176134496. Its totient is φ = 106464014928.

The previous prime is 399240055967. The next prime is 399240056093. The reversal of 399240056010 is 10650042993.

It is a self number, because there is not a number n which added to its sum of digits gives 399240056010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6654000904 + ... + 6654000963.

It is an arithmetic number, because the mean of its divisors is an integer number (59886008406).

Almost surely, 2^399240056010 is an apocalyptic number.

399240056010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

399240056010 is an abundant number, since it is smaller than the sum of its proper divisors (558936078486).

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

399240056010 is a wasteful number, since it uses less digits than its factorization.

399240056010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13308001877.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 399240056010 in words is "three hundred ninety-nine billion, two hundred forty million, fifty-six thousand, ten".