23281264 has 10 divisors (see below), whose sum is σ = 45107480. Its totient is φ = 11640624.

The previous prime is 23281241. The next prime is 23281301. The reversal of 23281264 is 46218232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727524 + ... + 727555.

It is an arithmetic number, because the mean of its divisors is an integer number (4510748).

Almost surely, 2^23281264 is an apocalyptic number.

It is an amenable number.

23281264 is a deficient number, since it is larger than the sum of its proper divisors (21826216).

23281264 is a wasteful number, since it uses less digits than its factorization.

23281264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455087 (or 1455081 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 23281264 is about 4825.0662171622. The cubic root of 23281264 is about 285.5412470323.

Adding to 23281264 its reverse (46218232), we get a palindrome (69499496).

The spelling of 23281264 in words is "twenty-three million, two hundred eighty-one thousand, two hundred sixty-four".