22449998 has 4 divisors (see below), whose sum is σ = 33675000. Its totient is φ = 11224998.

The previous prime is 22449961. The next prime is 22450003. The reversal of 22449998 is 89994422.

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, 5612498 + ... + 5612501.

It is an arithmetic number, because the mean of its divisors is an integer number (8418750).

Almost surely, 2^22449998 is an apocalyptic number.

22449998 is a deficient number, since it is larger than the sum of its proper divisors (11225002).

22449998 is a wasteful number, since it uses less digits than its factorization.

22449998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11225001.

The product of its digits is 373248, while the sum is 47.

The square root of 22449998 is about 4738.1428851397. The cubic root of 22449998 is about 282.1015260750.

The spelling of 22449998 in words is "twenty-two million, four hundred forty-nine thousand, nine hundred ninety-eight".