22090438 has 8 divisors (see below), whose sum is σ = 33155640. Its totient is φ = 11038560.

The previous prime is 22090427. The next prime is 22090447. The reversal of 22090438 is 83409022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4473 + ... + 8011.

It is an arithmetic number, because the mean of its divisors is an integer number (4144455).

Almost surely, 2^22090438 is an apocalyptic number.

22090438 is a deficient number, since it is larger than the sum of its proper divisors (11065202).

22090438 is a wasteful number, since it uses less digits than its factorization.

22090438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6662.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22090438 is about 4700.0465955137. The cubic root of 22090438 is about 280.5873639472.

The spelling of 22090438 in words is "twenty-two million, ninety thousand, four hundred thirty-eight".