23281230 has 32 divisors (see below), whose sum is σ = 63857664. Its totient is φ = 5321376.

The previous prime is 23281187. The next prime is 23281231. The reversal of 23281230 is 3218232.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23281197 and 23281206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23281231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55222 + ... + 55641.

It is an arithmetic number, because the mean of its divisors is an integer number (1995552).

Almost surely, 2^23281230 is an apocalyptic number.

23281230 is an abundant number, since it is smaller than the sum of its proper divisors (40576434).

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

23281230 is a wasteful number, since it uses less digits than its factorization.

23281230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110880.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 23281230 is about 4825.0626938932. The cubic root of 23281230 is about 285.5411080306.

Adding to 23281230 its reverse (3218232), we get a palindrome (26499462).

The spelling of 23281230 in words is "twenty-three million, two hundred eighty-one thousand, two hundred thirty".