22488530 has 8 divisors (see below), whose sum is σ = 40479372. Its totient is φ = 8995408.

The previous prime is 22488491. The next prime is 22488539. The reversal of 22488530 is 3588422.

It can be written as a sum of positive squares in 2 ways, for example, as 22477081 + 11449 = 4741^2 + 107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22488539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124417 + ... + 1124436.

Almost surely, 2^22488530 is an apocalyptic number.

22488530 is a deficient number, since it is larger than the sum of its proper divisors (17990842).

22488530 is a wasteful number, since it uses less digits than its factorization.

22488530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248860.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 22488530 is about 4742.2072919686. The cubic root of 22488530 is about 282.2628285848.

The spelling of 22488530 in words is "twenty-two million, four hundred eighty-eight thousand, five hundred thirty".