22709970 has 120 divisors (see below), whose sum is σ = 65039436. Its totient is φ = 5683392.

The previous prime is 22709969. The next prime is 22710031. The reversal of 22709970 is 7990722.

It can be written as a sum of positive squares in 2 ways, for example, as 22667121 + 42849 = 4761^2 + 207^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 428464 + ... + 428516.

Almost surely, 2^22709970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22709970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32519718).

22709970 is an abundant number, since it is smaller than the sum of its proper divisors (42329466).

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

22709970 is a wasteful number, since it uses less digits than its factorization.

22709970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 22709970 is about 4765.4978753536. The cubic root of 22709970 is about 283.1862658522.

The spelling of 22709970 in words is "twenty-two million, seven hundred nine thousand, nine hundred seventy".