22920631 has 8 divisors (see below), whose sum is σ = 24641280. Its totient is φ = 21251448.

The previous prime is 22920619. The next prime is 22920647. The reversal of 22920631 is 13602922.

It is a happy number.

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 22920631 - 2¹¹ = 22918583 is a prime.

It is a super-2 number, since 2×22920631² = 1050710650876322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22920596 and 22920605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22920661) 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, 11941 + ... + 13726.

It is an arithmetic number, because the mean of its divisors is an integer number (3080160).

Almost surely, 2^22920631 is an apocalyptic number.

22920631 is a deficient number, since it is larger than the sum of its proper divisors (1720649).

22920631 is a wasteful number, since it uses less digits than its factorization.

22920631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25733.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 22920631 is about 4787.5495819887. The cubic root of 22920631 is about 284.0591979685.

The spelling of 22920631 in words is "twenty-two million, nine hundred twenty thousand, six hundred thirty-one".