22722938 has 32 divisors (see below), whose sum is σ = 41223168. Its totient is φ = 9187200.

The previous prime is 22722923. The next prime is 22722961. The reversal of 22722938 is 83922722.

It is a happy number.

It is a super-2 number, since 2×22722938² = 1032663822703688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 22722898 and 22722907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17156 + ... + 18432.

It is an arithmetic number, because the mean of its divisors is an integer number (1288224).

Almost surely, 2^22722938 is an apocalyptic number.

22722938 is a deficient number, since it is larger than the sum of its proper divisors (18500230).

22722938 is a wasteful number, since it uses less digits than its factorization.

22722938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358.

The product of its digits is 24192, while the sum is 35.

The square root of 22722938 is about 4766.8582945164. The cubic root of 22722938 is about 283.2401579051.

The spelling of 22722938 in words is "twenty-two million, seven hundred twenty-two thousand, nine hundred thirty-eight".