2423631 has 16 divisors (see below), whose sum is σ = 3725568. Its totient is φ = 1372800.

The previous prime is 2423627. The next prime is 2423651. The reversal of 2423631 is 1363242.

It is a happy number.

It is not a de Polignac number, because 2423631 - 2² = 2423627 is a prime.

It is a super-2 number, since 2×2423631² = 11747974448322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

2423631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2423598 and 2423607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2423651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311 + ... + 3191.

It is an arithmetic number, because the mean of its divisors is an integer number (232848).

2^2423631 is an apocalyptic number.

2423631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2423631 is a deficient number, since it is larger than the sum of its proper divisors (1301937).

2423631 is a wasteful number, since it uses less digits than its factorization.

2423631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022.

The product of its digits is 864, while the sum is 21.

The square root of 2423631 is about 1556.8015287762. The cubic root of 2423631 is about 134.3245825640.

Adding to 2423631 its reverse (1363242), we get a palindrome (3786873).

The spelling of 2423631 in words is "two million, four hundred twenty-three thousand, six hundred thirty-one".