22813998 has 8 divisors (see below), whose sum is σ = 45628008. Its totient is φ = 7604664.

The previous prime is 22813963. The next prime is 22814023. The reversal of 22813998 is 89931822.

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

22813998 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1901161 + ... + 1901172.

It is an arithmetic number, because the mean of its divisors is an integer number (5703501).

Almost surely, 2^22813998 is an apocalyptic number.

22813998 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.

22813998 is a wasteful number, since it uses less digits than its factorization.

22813998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3802338.

The product of its digits is 62208, while the sum is 42.

The square root of 22813998 is about 4776.4001088686. The cubic root of 22813998 is about 283.6180062345.

The spelling of 22813998 in words is "twenty-two million, eight hundred thirteen thousand, nine hundred ninety-eight".