22238764 has 6 divisors (see below), whose sum is σ = 38917844. Its totient is φ = 11119380.

The previous prime is 22238743. The next prime is 22238779. The reversal of 22238764 is 46783222.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2779842 + ... + 2779849.

Almost surely, 2^22238764 is an apocalyptic number.

It is an amenable number.

22238764 is a deficient number, since it is larger than the sum of its proper divisors (16679080).

22238764 is a wasteful number, since it uses less digits than its factorization.

22238764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559695 (or 5559693 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 22238764 is about 4715.7994020102. The cubic root of 22238764 is about 281.2139638438.

It can be divided in two parts, 2 and 2238764, that multiplied together give a triangular number (4477528 = T₂₉₉₂).

The spelling of 22238764 in words is "twenty-two million, two hundred thirty-eight thousand, seven hundred sixty-four".