401355371632 has 40 divisors (see below), whose sum is σ = 844958696960. Its totient is φ = 183982933440.

The previous prime is 401355371609. The next prime is 401355371639. The reversal of 401355371632 is 236173553104.

It is a super-2 number, since 2×401355371632² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401355371639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21284898 + ... + 21303745.

It is an arithmetic number, because the mean of its divisors is an integer number (21123967424).

Almost surely, 2^401355371632 is an apocalyptic number.

It is an amenable number.

401355371632 is an abundant number, since it is smaller than the sum of its proper divisors (443603325328).

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

401355371632 is a wasteful number, since it uses less digits than its factorization.

401355371632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42588701 (or 42588695 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 401355371632 in words is "four hundred one billion, three hundred fifty-five million, three hundred seventy-one thousand, six hundred thirty-two".