22436865 has 64 divisors (see below), whose sum is σ = 45100800. Its totient is φ = 10483200.

The previous prime is 22436833. The next prime is 22436873. The reversal of 22436865 is 56863422.

It is not a de Polignac number, because 22436865 - 2⁵ = 22436833 is a prime.

It is a super-2 number, since 2×22436865² = 1006825822056450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42805 + ... + 43325.

It is an arithmetic number, because the mean of its divisors is an integer number (704700).

Almost surely, 2^22436865 is an apocalyptic number.

It is an amenable number.

22436865 is an abundant number, since it is smaller than the sum of its proper divisors (22663935).

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

22436865 is a wasteful number, since it uses less digits than its factorization.

22436865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 569 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 22436865 is about 4736.7568018635. The cubic root of 22436865 is about 282.0465065897.

The spelling of 22436865 in words is "twenty-two million, four hundred thirty-six thousand, eight hundred sixty-five".