401505560 has 16 divisors (see below), whose sum is σ = 903387600. Its totient is φ = 160602208.

The previous prime is 401505499. The next prime is 401505593. The reversal of 401505560 is 65505104.

It is a super-2 number, since 2×401505560² = 322413429421827200, 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 3 ways as a sum of consecutive naturals, for example, 5018780 + ... + 5018859.

It is an arithmetic number, because the mean of its divisors is an integer number (56461725).

Almost surely, 2^401505560 is an apocalyptic number.

401505560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401505560 is an abundant number, since it is smaller than the sum of its proper divisors (501882040).

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

401505560 is a wasteful number, since it uses less digits than its factorization.

401505560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10037650 (or 10037646 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 401505560 is about 20037.6036491393. The cubic root of 401505560 is about 737.7295640808.

The spelling of 401505560 in words is "four hundred one million, five hundred five thousand, five hundred sixty".