400254923016 has 64 divisors (see below), whose sum is σ = 1197343795200. Its totient is φ = 123155360064.

The previous prime is 400254922979. The next prime is 400254923059. The reversal of 400254923016 is 610329452004.

It is a happy number.

400254923016 is a `hidden beast` number, since 400 + 2 + 5 + 4 + 9 + 230 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 71267656 + ... + 71273271.

It is an arithmetic number, because the mean of its divisors is an integer number (18708496800).

Almost surely, 2^400254923016 is an apocalyptic number.

It is an amenable number.

400254923016 is an abundant number, since it is smaller than the sum of its proper divisors (797088872184).

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

400254923016 is a wasteful number, since it uses less digits than its factorization.

400254923016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142540955 (or 142540945 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 400254923016 in words is "four hundred billion, two hundred fifty-four million, nine hundred twenty-three thousand, sixteen".