400369349016 has 128 divisors (see below), whose sum is σ = 1368784166400. Its totient is φ = 105591911040.

The previous prime is 400369348991. The next prime is 400369349059. The reversal of 400369349016 is 610943963004.

400369349016 is a `hidden beast` number, since 40 + 0 + 36 + 93 + 490 + 1 + 6 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10164750 + ... + 10204061.

It is an arithmetic number, because the mean of its divisors is an integer number (10693626300).

Almost surely, 2^400369349016 is an apocalyptic number.

It is an amenable number.

400369349016 is an abundant number, since it is smaller than the sum of its proper divisors (968414817384).

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

400369349016 is a wasteful number, since it uses less digits than its factorization.

400369349016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20368846 (or 20368836 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 400369349016 in words is "four hundred billion, three hundred sixty-nine million, three hundred forty-nine thousand, sixteen".