22874440 has 16 divisors (see below), whose sum is σ = 51467580. Its totient is φ = 9149760.

The previous prime is 22874437. The next prime is 22874441. The reversal of 22874440 is 4447822.

It can be written as a sum of positive squares in 2 ways, for example, as 18818244 + 4056196 = 4338^2 + 2014^2 .

It is not an unprimeable number, because it can be changed into a prime (22874441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285891 + ... + 285970.

Almost surely, 2^22874440 is an apocalyptic number.

22874440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22874440 is an abundant number, since it is smaller than the sum of its proper divisors (28593140).

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

22874440 is a wasteful number, since it uses less digits than its factorization.

22874440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571872 (or 571868 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 22874440 is about 4782.7230737311. The cubic root of 22874440 is about 283.8682520568.

The spelling of 22874440 in words is "twenty-two million, eight hundred seventy-four thousand, four hundred forty".