401375889344 has 56 divisors (see below), whose sum is σ = 862944535728. Its totient is φ = 184490127360.

The previous prime is 401375889337. The next prime is 401375889359. The reversal of 401375889344 is 443988573104.

It is a super-2 number, since 2×401375889344² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401375889344.

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, 4242887 + ... + 4336454.

Almost surely, 2^401375889344 is an apocalyptic number.

It is an amenable number.

401375889344 is an abundant number, since it is smaller than the sum of its proper divisors (461568646384).

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

401375889344 is a wasteful number, since it uses less digits than its factorization.

401375889344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8579413 (or 8579403 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 401375889344 in words is "four hundred one billion, three hundred seventy-five million, eight hundred eighty-nine thousand, three hundred forty-four".