401440111320 has 32 divisors (see below), whose sum is σ = 1204320334320. Its totient is φ = 107050696320.

The previous prime is 401440111187. The next prime is 401440111333. The reversal of 401440111320 is 23111044104.

It is a super-2 number, since 2×401440111320² (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 7 ways as a sum of consecutive naturals, for example, 1672667011 + ... + 1672667250.

Almost surely, 2^401440111320 is an apocalyptic number.

401440111320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401440111320 is an abundant number, since it is smaller than the sum of its proper divisors (802880223000).

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

401440111320 is a wasteful number, since it uses less digits than its factorization.

401440111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345334275 (or 3345334271 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 401440111320 its reverse (23111044104), we get a palindrome (424551155424).

The spelling of 401440111320 in words is "four hundred one billion, four hundred forty million, one hundred eleven thousand, three hundred twenty".