22820788 has 12 divisors (see below), whose sum is σ = 40865440. Its totient is φ = 11144952.

The previous prime is 22820779. The next prime is 22820789. The reversal of 22820788 is 88702822.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22820789) 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, 66168 + ... + 66511.

Almost surely, 2^22820788 is an apocalyptic number.

It is an amenable number.

22820788 is a deficient number, since it is larger than the sum of its proper divisors (18044652).

22820788 is a wasteful number, since it uses less digits than its factorization.

22820788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132726 (or 132724 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 22820788 is about 4777.1108423398. The cubic root of 22820788 is about 283.6461406463.

The spelling of 22820788 in words is "twenty-two million, eight hundred twenty thousand, seven hundred eighty-eight".