22204454 has 4 divisors (see below), whose sum is σ = 33306684. Its totient is φ = 11102226.

The previous prime is 22204447. The next prime is 22204471. The reversal of 22204454 is 45440222.

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, 5551112 + ... + 5551115.

It is an arithmetic number, because the mean of its divisors is an integer number (8326671).

Almost surely, 2^22204454 is an apocalyptic number.

22204454 is a deficient number, since it is larger than the sum of its proper divisors (11102230).

22204454 is a wasteful number, since it uses less digits than its factorization.

22204454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11102229.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 22204454 is about 4712.1602264779. The cubic root of 22204454 is about 281.0692702922.

Adding to 22204454 its reverse (45440222), we get a palindrome (67644676).

The spelling of 22204454 in words is "twenty-two million, two hundred four thousand, four hundred fifty-four".