400273374180 has 48 divisors (see below), whose sum is σ = 1120838552064. Its totient is φ = 106732604160.

The previous prime is 400273374139. The next prime is 400273374181. The reversal of 400273374180 is 81473372004.

It is not an unprimeable number, because it can be changed into a prime (400273374181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745165 + ... + 1164395.

It is an arithmetic number, because the mean of its divisors is an integer number (23350803168).

Almost surely, 2^400273374180 is an apocalyptic number.

It is an amenable number.

400273374180 is an abundant number, since it is smaller than the sum of its proper divisors (720565177884).

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

400273374180 is a wasteful number, since it uses less digits than its factorization.

400273374180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435156 (or 435154 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 400273374180 in words is "four hundred billion, two hundred seventy-three million, three hundred seventy-four thousand, one hundred eighty".