401440113 has 48 divisors (see below), whose sum is σ = 628992000. Its totient is φ = 245916000.

The previous prime is 401440103. The next prime is 401440147. The reversal of 401440113 is 311044104.

It is not a de Polignac number, because 401440113 - 2⁴ = 401440097 is a prime.

It is a super-2 number, since 2×401440113² = 322308328650905538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401440103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1599238 + ... + 1599488.

It is an arithmetic number, because the mean of its divisors is an integer number (13104000).

Almost surely, 2^401440113 is an apocalyptic number.

It is an amenable number.

401440113 is a deficient number, since it is larger than the sum of its proper divisors (227551887).

401440113 is a wasteful number, since it uses less digits than its factorization.

401440113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 401440113 is about 20035.9704781176. The cubic root of 401440113 is about 737.6894776202.

Adding to 401440113 its reverse (311044104), we get a palindrome (712484217).

The spelling of 401440113 in words is "four hundred one million, four hundred forty thousand, one hundred thirteen".