401365504 has 40 divisors (see below), whose sum is σ = 812180160. Its totient is φ = 198122496.

The previous prime is 401365499. The next prime is 401365511. The reversal of 401365504 is 405563104.

It is a super-2 number, since 2×401365504² = 322188535602348032, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 35487 + ... + 45409.

It is an arithmetic number, because the mean of its divisors is an integer number (20304504).

Almost surely, 2^401365504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401365504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406090080).

401365504 is an abundant number, since it is smaller than the sum of its proper divisors (410814656).

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

401365504 is an frugal number, since it uses more digits than its factorization.

401365504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10020 (or 10004 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 401365504 is about 20034.1085152297. The cubic root of 401365504 is about 737.6437740955.

The spelling of 401365504 in words is "four hundred one million, three hundred sixty-five thousand, five hundred four".