22573438 has 4 divisors (see below), whose sum is σ = 33860160. Its totient is φ = 11286718.

The previous prime is 22573429. The next prime is 22573457. The reversal of 22573438 is 83437522.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5643358 + ... + 5643361.

It is an arithmetic number, because the mean of its divisors is an integer number (8465040).

Almost surely, 2^22573438 is an apocalyptic number.

22573438 is a deficient number, since it is larger than the sum of its proper divisors (11286722).

22573438 is a wasteful number, since it uses less digits than its factorization.

22573438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11286721.

The product of its digits is 40320, while the sum is 34.

The square root of 22573438 is about 4751.1512289128. The cubic root of 22573438 is about 282.6176208985.

The spelling of 22573438 in words is "twenty-two million, five hundred seventy-three thousand, four hundred thirty-eight".