401363520 has 56 divisors (see below), whose sum is σ = 1274332224. Its totient is φ = 107030016.

The previous prime is 401363519. The next prime is 401363537. The reversal of 401363520 is 25363104.

It is a happy number.

It is a super-2 number, since 2×401363520² = 322185350373580800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208084 + ... + 210003.

Almost surely, 2^401363520 is an apocalyptic number.

401363520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401363520 is an abundant number, since it is smaller than the sum of its proper divisors (872968704).

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

401363520 is a wasteful number, since it uses less digits than its factorization.

401363520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418107 (or 418097 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 401363520 is about 20034.0589996136. The cubic root of 401363520 is about 737.6425586717.

The spelling of 401363520 in words is "four hundred one million, three hundred sixty-three thousand, five hundred twenty".