22438542 has 32 divisors (see below), whose sum is σ = 51777792. Its totient is φ = 6349824.

The previous prime is 22438511. The next prime is 22438553. The reversal of 22438542 is 24583422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1998 + ... + 6990.

It is an arithmetic number, because the mean of its divisors is an integer number (1618056).

Almost surely, 2^22438542 is an apocalyptic number.

22438542 is an abundant number, since it is smaller than the sum of its proper divisors (29339250).

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

22438542 is a wasteful number, since it uses less digits than its factorization.

22438542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5112.

The product of its digits is 15360, while the sum is 30.

The square root of 22438542 is about 4736.9338184104. The cubic root of 22438542 is about 282.0535334212.

The spelling of 22438542 in words is "twenty-two million, four hundred thirty-eight thousand, five hundred forty-two".