399672460834 has 16 divisors (see below), whose sum is σ = 602017587000. Its totient is φ = 199000387584.

The previous prime is 399672460829. The next prime is 399672460879. The reversal of 399672460834 is 438064276993.

It can be written as a sum of positive squares in 4 ways, for example, as 395770584609 + 3901876225 = 629103^2 + 62465^2 .

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, 1670992 + ... + 1895140.

Almost surely, 2^399672460834 is an apocalyptic number.

399672460834 is a deficient number, since it is larger than the sum of its proper divisors (202345126166).

399672460834 is a wasteful number, since it uses less digits than its factorization.

399672460834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227877.

The product of its (nonzero) digits is 47029248, while the sum is 61.

The spelling of 399672460834 in words is "three hundred ninety-nine billion, six hundred seventy-two million, four hundred sixty thousand, eight hundred thirty-four".