11402631 has 12 divisors (see below), whose sum is σ = 17439552. Its totient is φ = 7154496.

The previous prime is 11402627. The next prime is 11402653. The reversal of 11402631 is 13620411.

It is a happy number.

It is not a de Polignac number, because 11402631 - 2² = 11402627 is a prime.

It is a super-2 number, since 2×11402631² = 260039987444322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11402231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37111 + ... + 37416.

It is an arithmetic number, because the mean of its divisors is an integer number (1453296).

Almost surely, 2^11402631 is an apocalyptic number.

11402631 is a deficient number, since it is larger than the sum of its proper divisors (6036921).

11402631 is a wasteful number, since it uses less digits than its factorization.

11402631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74550 (or 74547 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 11402631 is about 3376.7781982239. The cubic root of 11402631 is about 225.0790240939.

The spelling of 11402631 in words is "eleven million, four hundred two thousand, six hundred thirty-one".