22357072 has 40 divisors (see below), whose sum is σ = 45934560. Its totient is φ = 10512000.

The previous prime is 22357063. The next prime is 22357073. The reversal of 22357072 is 27075322.

It is a self number, because there is not a number n which added to its sum of digits gives 22357072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22357073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76158 + ... + 76450.

It is an arithmetic number, because the mean of its divisors is an integer number (1148364).

Almost surely, 2^22357072 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 22357072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22967280).

22357072 is an abundant number, since it is smaller than the sum of its proper divisors (23577488).

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

22357072 is a wasteful number, since it uses less digits than its factorization.

22357072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 22357072 is about 4728.3265538666. The cubic root of 22357072 is about 281.7117588643.

The spelling of 22357072 in words is "twenty-two million, three hundred fifty-seven thousand, seventy-two".