401505204 has 48 divisors (see below), whose sum is σ = 1004024448. Its totient is φ = 124553088.

The previous prime is 401505197. The next prime is 401505217. The reversal of 401505204 is 402505104.

It is a super-2 number, since 2×401505204² = 322412857678163232, which 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 15 ways as a sum of consecutive naturals, for example, 9447 + ... + 29870.

It is an arithmetic number, because the mean of its divisors is an integer number (20917176).

Almost surely, 2^401505204 is an apocalyptic number.

It is an amenable number.

401505204 is an abundant number, since it is smaller than the sum of its proper divisors (602519244).

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

401505204 is a wasteful number, since it uses less digits than its factorization.

401505204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39384 (or 39382 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 401505204 is about 20037.5947658395. The cubic root of 401505204 is about 737.7293460416.

It can be divided in two parts, 40150 and 5204, that added together give a palindrome (45354).

The spelling of 401505204 in words is "four hundred one million, five hundred five thousand, two hundred four".