22436874 has 48 divisors (see below), whose sum is σ = 50862240. Its totient is φ = 7140960.

The previous prime is 22436873. The next prime is 22436879. The reversal of 22436874 is 47863422.

22436874 is a `hidden beast` number, since 224 + 368 + 74 = 666.

Its product of digits (64512) is a multiple of the sum of its prime divisors (672).

It is not an unprimeable number, because it can be changed into a prime (22436873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39009 + ... + 39579.

It is an arithmetic number, because the mean of its divisors is an integer number (1059630).

Almost surely, 2^22436874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22436874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25431120).

22436874 is an abundant number, since it is smaller than the sum of its proper divisors (28425366).

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

22436874 is a wasteful number, since it uses less digits than its factorization.

22436874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 672 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 22436874 is about 4736.7577518805. The cubic root of 22436874 is about 282.0465443017.

The spelling of 22436874 in words is "twenty-two million, four hundred thirty-six thousand, eight hundred seventy-four".