22365798 has 96 divisors (see below), whose sum is σ = 58185216. Its totient is φ = 5601024.

The previous prime is 22365767. The next prime is 22365799. The reversal of 22365798 is 89756322.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22365799) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163186 + ... + 163322.

It is an arithmetic number, because the mean of its divisors is an integer number (606096).

Almost surely, 2^22365798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22365798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29092608).

22365798 is an abundant number, since it is smaller than the sum of its proper divisors (35819418).

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

22365798 is a wasteful number, since it uses less digits than its factorization.

22365798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 185 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 22365798 is about 4729.2492004545. The cubic root of 22365798 is about 281.7484049430.

The spelling of 22365798 in words is "twenty-two million, three hundred sixty-five thousand, seven hundred ninety-eight".