22536460 has 12 divisors (see below), whose sum is σ = 47326608. Its totient is φ = 9014576.

The previous prime is 22536457. The next prime is 22536463. The reversal of 22536460 is 6463522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22536457) and next prime (22536463).

It is not an unprimeable number, because it can be changed into a prime (22536463) 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, 563392 + ... + 563431.

It is an arithmetic number, because the mean of its divisors is an integer number (3943884).

Almost surely, 2^22536460 is an apocalyptic number.

22536460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22536460 is an abundant number, since it is smaller than the sum of its proper divisors (24790148).

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

22536460 is a wasteful number, since it uses less digits than its factorization.

22536460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126832 (or 1126830 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 22536460 is about 4747.2581560307. The cubic root of 22536460 is about 282.4632160319.

Adding to 22536460 its reverse (6463522), we get a palindrome (28999982).

The spelling of 22536460 in words is "twenty-two million, five hundred thirty-six thousand, four hundred sixty".