22709952 has 84 divisors (see below), whose sum is σ = 65973960. Its totient is φ = 7468032.

The previous prime is 22709933. The next prime is 22709957. The reversal of 22709952 is 25990722.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22709957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51043 + ... + 51485.

Almost surely, 2^22709952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22709952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32986980).

22709952 is an abundant number, since it is smaller than the sum of its proper divisors (43264008).

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

22709952 is a wasteful number, since it uses less digits than its factorization.

22709952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 22709952 is about 4765.4959867783. The cubic root of 22709952 is about 283.1861910340.

The spelling of 22709952 in words is "twenty-two million, seven hundred nine thousand, nine hundred fifty-two".