23528330 has 24 divisors (see below), whose sum is σ = 49266468. Its totient is φ = 8066688.

The previous prime is 23528321. The next prime is 23528339. The reversal of 23528330 is 3382532.

It is an interprime number because it is at equal distance from previous prime (23528321) and next prime (23528339).

It can be written as a sum of positive squares in 2 ways, for example, as 22061809 + 1466521 = 4697^2 + 1211^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23528330.

It is not an unprimeable number, because it can be changed into a prime (23528339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23519 + ... + 24498.

Almost surely, 2^23528330 is an apocalyptic number.

23528330 is an abundant number, since it is smaller than the sum of its proper divisors (25738138).

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

23528330 is a wasteful number, since it uses less digits than its factorization.

23528330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48038 (or 48031 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 23528330 is about 4850.6009936914. The cubic root of 23528330 is about 286.5477708374.

The spelling of 23528330 in words is "twenty-three million, five hundred twenty-eight thousand, three hundred thirty".