401355312144 has 40 divisors (see below), whose sum is σ = 1036864743552. Its totient is φ = 133781208960.

The previous prime is 401355312139. The next prime is 401355312157. The reversal of 401355312144 is 441213553104.

It is a super-2 number, since 2×401355312144² (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, 1885257 + ... + 2087319.

Almost surely, 2^401355312144 is an apocalyptic number.

It is an amenable number.

401355312144 is an abundant number, since it is smaller than the sum of its proper divisors (635509431408).

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

401355312144 is a wasteful number, since it uses less digits than its factorization.

401355312144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243455 (or 243449 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 401355312144 its reverse (441213553104), we get a palindrome (842568865248).

The spelling of 401355312144 in words is "four hundred one billion, three hundred fifty-five million, three hundred twelve thousand, one hundred forty-four".