22772072 has 16 divisors (see below), whose sum is σ = 42748800. Its totient is φ = 11372400.

The previous prime is 22772059. The next prime is 22772081. The reversal of 22772072 is 27027722.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10697 + ... + 12647.

It is an arithmetic number, because the mean of its divisors is an integer number (2671800).

Almost surely, 2^22772072 is an apocalyptic number.

It is an amenable number.

22772072 is a deficient number, since it is larger than the sum of its proper divisors (19976728).

22772072 is a wasteful number, since it uses less digits than its factorization.

22772072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416 (or 3412 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 22772072 is about 4772.0092204437. The cubic root of 22772072 is about 283.4441617946. Note that the first 3 decimals are identical.

Adding to 22772072 its reverse (27027722), we get a palindrome (49799794).

The spelling of 22772072 in words is "twenty-two million, seven hundred seventy-two thousand, seventy-two".