22542396 has 48 divisors (see below), whose sum is σ = 54848640. Its totient is φ = 7197120.

The previous prime is 22542383. The next prime is 22542397. The reversal of 22542396 is 69324522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22542397) 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, 73275 + ... + 73581.

It is an arithmetic number, because the mean of its divisors is an integer number (1142680).

Almost surely, 2^22542396 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 22542396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27424320).

22542396 is an abundant number, since it is smaller than the sum of its proper divisors (32306244).

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

22542396 is a wasteful number, since it uses less digits than its factorization.

22542396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 552 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 22542396 is about 4747.8833178586. The cubic root of 22542396 is about 282.4880136925.

The spelling of 22542396 in words is "twenty-two million, five hundred forty-two thousand, three hundred ninety-six".