22772502 has 28 divisors (see below), whose sum is σ = 51217980. Its totient is φ = 7590348.

The previous prime is 22772483. The next prime is 22772527. The reversal of 22772502 is 20527722.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 6352 + ... + 9267.

Almost surely, 2^22772502 is an apocalyptic number.

22772502 is an abundant number, since it is smaller than the sum of its proper divisors (28445478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22772502 is an equidigital number, since it uses as much as digits as its factorization.

22772502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15639 (or 15624 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 22772502 is about 4772.0542746285. The cubic root of 22772502 is about 283.4459458545.

The spelling of 22772502 in words is "twenty-two million, seven hundred seventy-two thousand, five hundred two".