23040256 has 18 divisors (see below), whose sum is σ = 45991022. Its totient is φ = 11520000.

The previous prime is 23040247. The next prime is 23040263. The reversal of 23040256 is 65204032.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23040000 + 256 = 4800^2 + 16^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44745 + ... + 45256.

Almost surely, 2^23040256 is an apocalyptic number.

It is an amenable number.

23040256 is a deficient number, since it is larger than the sum of its proper divisors (22950766).

23040256 is an frugal number, since it uses more digits than its factorization.

23040256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90017 (or 90003 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 23040256 is about 4800.0266665926. The cubic root of 23040256 is about 284.5525182496.

Adding to 23040256 its reverse (65204032), we get a palindrome (88244288).

The spelling of 23040256 in words is "twenty-three million, forty thousand, two hundred fifty-six".