22232764 has 6 divisors (see below), whose sum is σ = 38907344. Its totient is φ = 11116380.

The previous prime is 22232761. The next prime is 22232801. The reversal of 22232764 is 46723222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22232761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2779092 + ... + 2779099.

Almost surely, 2^22232764 is an apocalyptic number.

It is an amenable number.

22232764 is a deficient number, since it is larger than the sum of its proper divisors (16674580).

22232764 is a wasteful number, since it uses less digits than its factorization.

22232764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558195 (or 5558193 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 22232764 is about 4715.1631997207. The cubic root of 22232764 is about 281.1886711380.

Adding to 22232764 its reverse (46723222), we get a palindrome (68955986).

The spelling of 22232764 in words is "twenty-two million, two hundred thirty-two thousand, seven hundred sixty-four".