2402631 has 24 divisors (see below), whose sum is σ = 4328064. Its totient is φ = 1247760.

The previous prime is 2402611. The next prime is 2402633. The reversal of 2402631 is 1362042.

It is a happy number.

It is not a de Polignac number, because 2402631 - 2⁶ = 2402567 is a prime.

It is a super-2 number, since 2×2402631² = 11545271444322, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1041 + ... + 2426.

It is an arithmetic number, because the mean of its divisors is an integer number (180336).

2^2402631 is an apocalyptic number.

2402631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2402631 is a deficient number, since it is larger than the sum of its proper divisors (1925433).

2402631 is a wasteful number, since it uses less digits than its factorization.

2402631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491 (or 3488 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2402631 is about 1550.0422574885. The cubic root of 2402631 is about 133.9354965410.

Adding to 2402631 its reverse (1362042), we get a palindrome (3764673).

The spelling of 2402631 in words is "two million, four hundred two thousand, six hundred thirty-one".