22450998 has 8 divisors (see below), whose sum is σ = 44902008. Its totient is φ = 7483664.

The previous prime is 22450997. The next prime is 22451003. The reversal of 22450998 is 89905422.

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

22450998 is an admirable number.

It is a super-2 number, since 2×22450998² = 1008094622392008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22450993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870911 + ... + 1870922.

It is an arithmetic number, because the mean of its divisors is an integer number (5612751).

Almost surely, 2^22450998 is an apocalyptic number.

22450998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22450998 is a wasteful number, since it uses less digits than its factorization.

22450998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3741838.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 22450998 is about 4738.2484105416. The cubic root of 22450998 is about 282.1057146031.

The spelling of 22450998 in words is "twenty-two million, four hundred fifty thousand, nine hundred ninety-eight".