401508890624 has 48 divisors (see below), whose sum is σ = 837727122960. Its totient is φ = 192025968640.

The previous prime is 401508890617. The next prime is 401508890639. The reversal of 401508890624 is 426098805104.

It is a super-2 number, since 2×401508890624² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4214837 + ... + 4309044.

It is an arithmetic number, because the mean of its divisors is an integer number (17452648395).

Almost surely, 2^401508890624 is an apocalyptic number.

It is an amenable number.

401508890624 is an abundant number, since it is smaller than the sum of its proper divisors (436218232336).

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

401508890624 is an equidigital number, since it uses as much as digits as its factorization.

401508890624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8523926 (or 8523906 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 401508890624 in words is "four hundred one billion, five hundred eight million, eight hundred ninety thousand, six hundred twenty-four".