401140144 has 20 divisors (see below), whose sum is σ = 777838360. Its totient is φ = 200407680.

The previous prime is 401140127. The next prime is 401140153. The reversal of 401140144 is 441041104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11647 + ... + 30625.

It is an arithmetic number, because the mean of its divisors is an integer number (38891918).

Almost surely, 2^401140144 is an apocalyptic number.

It is an amenable number.

401140144 is a deficient number, since it is larger than the sum of its proper divisors (376698216).

401140144 is a wasteful number, since it uses less digits than its factorization.

401140144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20308 (or 20302 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 401140144 is about 20028.4833175156. The cubic root of 401140144 is about 737.5056900452.

Adding to 401140144 its reverse (441041104), we get a palindrome (842181248).

The spelling of 401140144 in words is "four hundred one million, one hundred forty thousand, one hundred forty-four".