22098816 has 48 divisors (see below), whose sum is σ = 63594960. Its totient is φ = 7365888.

The previous prime is 22098809. The next prime is 22098829. The reversal of 22098816 is 61889022.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8440 + ... + 10743.

It is an arithmetic number, because the mean of its divisors is an integer number (1324895).

Almost surely, 2^22098816 is an apocalyptic number.

It is an amenable number.

22098816 is an abundant number, since it is smaller than the sum of its proper divisors (41496144).

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

22098816 is a wasteful number, since it uses less digits than its factorization.

22098816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19203 (or 19188 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 22098816 is about 4700.9377787841. The cubic root of 22098816 is about 280.6228312357.

It can be divided in two parts, 2209 and 8816, that added together give a square (11025 = 105²).

The spelling of 22098816 in words is "twenty-two million, ninety-eight thousand, eight hundred sixteen".