399999999934 has 32 divisors (see below), whose sum is σ = 626151319200. Its totient is φ = 191407681920.

The previous prime is 399999999929. The next prime is 399999999947. The reversal of 399999999934 is 439999999993.

It is a happy number.

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, 6633432 + ... + 6693460.

It is an arithmetic number, because the mean of its divisors is an integer number (19567228725).

Almost surely, 2^399999999934 is an apocalyptic number.

399999999934 is a deficient number, since it is larger than the sum of its proper divisors (226151319266).

399999999934 is a wasteful number, since it uses less digits than its factorization.

399999999934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61068.

The product of its digits is 13947137604, while the sum is 91.

The spelling of 399999999934 in words is "three hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty-four".