22512704 has 28 divisors (see below), whose sum is σ = 45523404. Its totient is φ = 11042304.

The previous prime is 22512703. The next prime is 22512713. The reversal of 22512704 is 40721522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6512704 + 16000000 = 2552^2 + 4000^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22512704.

It is not an unprimeable number, because it can be changed into a prime (22512703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 6710.

Almost surely, 2^22512704 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 22512704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22761702).

22512704 is an abundant number, since it is smaller than the sum of its proper divisors (23010700).

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

22512704 is an equidigital number, since it uses as much as digits as its factorization.

22512704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702 (or 6692 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 22512704 is about 4744.7554204616. The cubic root of 22512704 is about 282.3639316528.

The spelling of 22512704 in words is "twenty-two million, five hundred twelve thousand, seven hundred four".