22788712 has 8 divisors (see below), whose sum is σ = 42728850. Its totient is φ = 11394352.

The previous prime is 22788709. The next prime is 22788713. The reversal of 22788712 is 21788722.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22524516 + 264196 = 4746^2 + 514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22788713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1424287 + ... + 1424302.

Almost surely, 2^22788712 is an apocalyptic number.

It is an amenable number.

22788712 is a deficient number, since it is larger than the sum of its proper divisors (19940138).

22788712 is a wasteful number, since it uses less digits than its factorization.

22788712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848595 (or 2848591 counting only the distinct ones).

The product of its digits is 25088, while the sum is 37.

The square root of 22788712 is about 4773.7524024608. The cubic root of 22788712 is about 283.5131843895.

It can be divided in two parts, 22788 and 712, that multiplied together give a triangular number (16225056 = T₅₆₉₆).

The spelling of 22788712 in words is "twenty-two million, seven hundred eighty-eight thousand, seven hundred twelve".