22459998 has 32 divisors (see below), whose sum is σ = 49704192. Its totient is φ = 6708800.

The previous prime is 22459981. The next prime is 22460003. The reversal of 22459998 is 89995422.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2290 + ... + 7082.

It is an arithmetic number, because the mean of its divisors is an integer number (1553256).

Almost surely, 2^22459998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22459998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24852096).

22459998 is an abundant number, since it is smaller than the sum of its proper divisors (27244194).

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

22459998 is a wasteful number, since it uses less digits than its factorization.

22459998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880.

The product of its digits is 466560, while the sum is 48.

The square root of 22459998 is about 4739.1980334230. The cubic root of 22459998 is about 282.1434057596.

The spelling of 22459998 in words is "twenty-two million, four hundred fifty-nine thousand, nine hundred ninety-eight".