22949720 has 32 divisors (see below), whose sum is σ = 54356400. Its totient is φ = 8696448.

The previous prime is 22949713. The next prime is 22949753. The reversal of 22949720 is 2794922.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14339 + ... + 15858.

Almost surely, 2^22949720 is an apocalyptic number.

22949720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22949720 is an abundant number, since it is smaller than the sum of its proper divisors (31406680).

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

22949720 is a wasteful number, since it uses less digits than its factorization.

22949720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30227 (or 30223 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 22949720 is about 4790.5866029120. The cubic root of 22949720 is about 284.1793154425.

The spelling of 22949720 in words is "twenty-two million, nine hundred forty-nine thousand, seven hundred twenty".