23115330 has 48 divisors (see below), whose sum is σ = 68687424. Its totient is φ = 5283360.

The previous prime is 23115319. The next prime is 23115331. The reversal of 23115330 is 3351132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23115331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17716 + ... + 18975.

It is an arithmetic number, because the mean of its divisors is an integer number (1430988).

Almost surely, 2^23115330 is an apocalyptic number.

23115330 is an abundant number, since it is smaller than the sum of its proper divisors (45572094).

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

23115330 is a wasteful number, since it uses less digits than its factorization.

23115330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36711 (or 36708 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 23115330 is about 4807.8404715631. The cubic root of 23115330 is about 284.8612436281.

Adding to 23115330 its reverse (3351132), we get a palindrome (26466462).

The spelling of 23115330 in words is "twenty-three million, one hundred fifteen thousand, three hundred thirty".