23338530 has 40 divisors (see below), whose sum is σ = 62756892. Its totient is φ = 6223392.

The previous prime is 23338493. The next prime is 23338531. The reversal of 23338530 is 3583332.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21818241 + 1520289 = 4671^2 + 1233^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23338494 and 23338503.

It is not an unprimeable number, because it can be changed into a prime (23338531) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13597 + ... + 15216.

Almost surely, 2^23338530 is an apocalyptic number.

23338530 is an abundant number, since it is smaller than the sum of its proper divisors (39418362).

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

23338530 is a wasteful number, since it uses less digits than its factorization.

23338530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28832 (or 28823 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 23338530 is about 4830.9967915535. The cubic root of 23338530 is about 285.7751749990.

The spelling of 23338530 in words is "twenty-three million, three hundred thirty-eight thousand, five hundred thirty".