23313330 has 48 divisors (see below), whose sum is σ = 62261784. Its totient is φ = 6048000.

The previous prime is 23313299. The next prime is 23313331. The reversal of 23313330 is 3331332.

23313330 is a `hidden beast` number, since 2 + 331 + 3 + 330 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 21594609 + 1718721 = 4647^2 + 1311^2 .

It is a super-2 number, since 2×23313330² = 1087022711377800, which contains 22 as substring.

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 (23313331) 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, 171 + ... + 6830.

Almost surely, 2^23313330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23313330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31130892).

23313330 is an abundant number, since it is smaller than the sum of its proper divisors (38948454).

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

23313330 is a wasteful number, since it uses less digits than its factorization.

23313330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7051 (or 7048 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 23313330 is about 4828.3879297339. The cubic root of 23313330 is about 285.6722818013.

Adding to 23313330 its reverse (3331332), we get a palindrome (26644662).

The spelling of 23313330 in words is "twenty-three million, three hundred thirteen thousand, three hundred thirty".