22648631 has 8 divisors (see below), whose sum is σ = 23644800. Its totient is φ = 21669120.

The previous prime is 22648621. The next prime is 22648643. The reversal of 22648631 is 13684622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22648631 - 2¹⁸ = 22386487 is a prime.

It is a super-2 number, since 2×22648631² = 1025920972348322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22648621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346 + ... + 6863.

It is an arithmetic number, because the mean of its divisors is an integer number (2955600).

Almost surely, 2^22648631 is an apocalyptic number.

22648631 is a deficient number, since it is larger than the sum of its proper divisors (996169).

22648631 is an equidigital number, since it uses as much as digits as its factorization.

22648631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8329.

The product of its digits is 13824, while the sum is 32.

The square root of 22648631 is about 4759.0577848982. The cubic root of 22648631 is about 282.9310765407.

The spelling of 22648631 in words is "twenty-two million, six hundred forty-eight thousand, six hundred thirty-one".