22532438 has 4 divisors (see below), whose sum is σ = 33798660. Its totient is φ = 11266218.

The previous prime is 22532431. The next prime is 22532441. The reversal of 22532438 is 83423522.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22532438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5633108 + ... + 5633111.

It is an arithmetic number, because the mean of its divisors is an integer number (8449665).

Almost surely, 2^22532438 is an apocalyptic number.

22532438 is a deficient number, since it is larger than the sum of its proper divisors (11266222).

22532438 is a wasteful number, since it uses less digits than its factorization.

22532438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11266221.

The product of its digits is 11520, while the sum is 29.

The square root of 22532438 is about 4746.8345241856. The cubic root of 22532438 is about 282.4464116381.

The spelling of 22532438 in words is "twenty-two million, five hundred thirty-two thousand, four hundred thirty-eight".