400735924740 has 72 divisors (see below), whose sum is σ = 1279542788160. Its totient is φ = 101238548544.

The previous prime is 400735924739. The next prime is 400735924801. The reversal of 400735924740 is 47429537004.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58583704 + ... + 58590543.

Almost surely, 2^400735924740 is an apocalyptic number.

It is an amenable number.

400735924740 is an abundant number, since it is smaller than the sum of its proper divisors (878806863420).

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

400735924740 is a wasteful number, since it uses less digits than its factorization.

400735924740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117174281 (or 117174276 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 400735924740 in words is "four hundred billion, seven hundred thirty-five million, nine hundred twenty-four thousand, seven hundred forty".