23538130 has 72 divisors (see below), whose sum is σ = 54310284. Its totient is φ = 7318080.

The previous prime is 23538127. The next prime is 23538139. The reversal of 23538130 is 3183532.

It can be written as a sum of positive squares in 2 ways, for example, as 23532201 + 5929 = 4851^2 + 77^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23538095 and 23538104.

It is not an unprimeable number, because it can be changed into a prime (23538139) 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 35 ways as a sum of consecutive naturals, for example, 59092 + ... + 59488.

Almost surely, 2^23538130 is an apocalyptic number.

23538130 is an abundant number, since it is smaller than the sum of its proper divisors (30772154).

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

23538130 is a wasteful number, since it uses less digits than its factorization.

23538130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 23538130 is about 4851.6110726232. The cubic root of 23538130 is about 286.5875495264.

The spelling of 23538130 in words is "twenty-three million, five hundred thirty-eight thousand, one hundred thirty".