22543632 has 60 divisors (see below), whose sum is σ = 66809340. Its totient is φ = 7071744.

The previous prime is 22543627. The next prime is 22543637. The reversal of 22543632 is 23634522.

22543632 is a `hidden beast` number, since 2 + 25 + 4 + 3 + 632 = 666.

It is an interprime number because it is at equal distance from previous prime (22543627) and next prime (22543637).

It can be written as a sum of positive squares in 2 ways, for example, as 10265616 + 12278016 = 3204^2 + 3504^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22543596 and 22543605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22543637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2157 + ... + 7052.

It is an arithmetic number, because the mean of its divisors is an integer number (1113489).

Almost surely, 2^22543632 is an apocalyptic number.

It is an amenable number.

22543632 is an abundant number, since it is smaller than the sum of its proper divisors (44265708).

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

22543632 is a wasteful number, since it uses less digits than its factorization.

22543632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9240 (or 9231 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 22543632 is about 4748.0134793406. The cubic root of 22543632 is about 282.4931765392.

It can be divided in two parts, 2254 and 3632, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 22543632 in words is "twenty-two million, five hundred forty-three thousand, six hundred thirty-two".