401820873600 has 96 divisors (see below), whose sum is σ = 1323497534040. Its totient is φ = 107152230400.

The previous prime is 401820873599. The next prime is 401820873611. The reversal of 401820873600 is 6378028104.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×401820873600² (a number of 24 digits) 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 11 ways as a sum of consecutive naturals, for example, 20918571 + ... + 20937770.

Almost surely, 2^401820873600 is an apocalyptic number.

401820873600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401820873600 is an abundant number, since it is smaller than the sum of its proper divisors (921676660440).

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

401820873600 is a wasteful number, since it uses less digits than its factorization.

401820873600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41856368 (or 41856351 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 401820873600 in words is "four hundred one billion, eight hundred twenty million, eight hundred seventy-three thousand, six hundred".