401364293520 has 40 divisors (see below), whose sum is σ = 1244229310656. Its totient is φ = 107030478208.

The previous prime is 401364293497. The next prime is 401364293531. The reversal of 401364293520 is 25392463104.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×401364293520² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836175372 + ... + 836175851.

Almost surely, 2^401364293520 is an apocalyptic number.

401364293520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401364293520 is an abundant number, since it is smaller than the sum of its proper divisors (842865017136).

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

401364293520 is a wasteful number, since it uses less digits than its factorization.

401364293520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672351239 (or 1672351233 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 401364293520 in words is "four hundred one billion, three hundred sixty-four million, two hundred ninety-three thousand, five hundred twenty".