22457568 has 96 divisors (see below), whose sum is σ = 70350336. Its totient is φ = 6133248.

The previous prime is 22457551. The next prime is 22457569. The reversal of 22457568 is 86575422.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22457569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14730 + ... + 16182.

It is an arithmetic number, because the mean of its divisors is an integer number (732816).

Almost surely, 2^22457568 is an apocalyptic number.

22457568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22457568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35175168).

22457568 is an abundant number, since it is smaller than the sum of its proper divisors (47892768).

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

22457568 is a wasteful number, since it uses less digits than its factorization.

22457568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496 (or 1488 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 22457568 is about 4738.9416539983. The cubic root of 22457568 is about 282.1332301398.

The spelling of 22457568 in words is "twenty-two million, four hundred fifty-seven thousand, five hundred sixty-eight".