22433940 has 36 divisors (see below), whose sum is σ = 68050164. Its totient is φ = 5982336.

The previous prime is 22433933. The next prime is 22433959. The reversal of 22433940 is 4933422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16499844 + 5934096 = 4062^2 + 2436^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62137 + ... + 62496.

Almost surely, 2^22433940 is an apocalyptic number.

22433940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22433940 is an abundant number, since it is smaller than the sum of its proper divisors (45616224).

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

22433940 is a wasteful number, since it uses less digits than its factorization.

22433940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124648 (or 124643 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 22433940 is about 4736.4480362398. The cubic root of 22433940 is about 282.0342496503.

The spelling of 22433940 in words is "twenty-two million, four hundred thirty-three thousand, nine hundred forty".