22772830 has 32 divisors (see below), whose sum is σ = 44647200. Its totient is φ = 8330112.

The previous prime is 22772821. The next prime is 22772833. The reversal of 22772830 is 3827722.

It is a junction number, because it is equal to n+sod(n) for n = 22772792 and 22772801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22772833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3444 + ... + 7576.

It is an arithmetic number, because the mean of its divisors is an integer number (1395225).

Almost surely, 2^22772830 is an apocalyptic number.

22772830 is a deficient number, since it is larger than the sum of its proper divisors (21874370).

22772830 is a wasteful number, since it uses less digits than its factorization.

22772830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 22772830 is about 4772.0886412555. The cubic root of 22772830 is about 283.4473067038.

The spelling of 22772830 in words is "twenty-two million, seven hundred seventy-two thousand, eight hundred thirty".