22632730 has 8 divisors (see below), whose sum is σ = 40738932. Its totient is φ = 9053088.

The previous prime is 22632691. The next prime is 22632733. The reversal of 22632730 is 3723622.

It can be written as a sum of positive squares in 2 ways, for example, as 20133169 + 2499561 = 4487^2 + 1581^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22632695 and 22632704.

It is not an unprimeable number, because it can be changed into a prime (22632733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1131627 + ... + 1131646.

Almost surely, 2^22632730 is an apocalyptic number.

22632730 is a deficient number, since it is larger than the sum of its proper divisors (18106202).

22632730 is a wasteful number, since it uses less digits than its factorization.

22632730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263280.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 22632730 is about 4757.3868877778. The cubic root of 22632730 is about 282.8648482506.

The spelling of 22632730 in words is "twenty-two million, six hundred thirty-two thousand, seven hundred thirty".