400619834172 has 24 divisors (see below), whose sum is σ = 1038644014800. Its totient is φ = 133539944688.

The previous prime is 400619834101. The next prime is 400619834273. The reversal of 400619834172 is 271438916004.

400619834172 is a `hidden beast` number, since 40 + 0 + 6 + 198 + 3 + 417 + 2 = 666.

It is a congruent number.

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, 1854721347 + ... + 1854721562.

It is an arithmetic number, because the mean of its divisors is an integer number (43276833950).

Almost surely, 2^400619834172 is an apocalyptic number.

It is an amenable number.

400619834172 is an abundant number, since it is smaller than the sum of its proper divisors (638024180628).

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

400619834172 is a wasteful number, since it uses less digits than its factorization.

400619834172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709442922 (or 3709442914 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 400619834172 in words is "four hundred billion, six hundred nineteen million, eight hundred thirty-four thousand, one hundred seventy-two".