23145288 has 32 divisors (see below), whose sum is σ = 58125600. Its totient is φ = 7680128.

The previous prime is 23145281. The next prime is 23145293. The reversal of 23145288 is 88254132.

It is not an unprimeable number, because it can be changed into a prime (23145281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3523 + ... + 7661.

It is an arithmetic number, because the mean of its divisors is an integer number (1816425).

Almost surely, 2^23145288 is an apocalyptic number.

It is an amenable number.

23145288 is an abundant number, since it is smaller than the sum of its proper divisors (34980312).

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

23145288 is a wasteful number, since it uses less digits than its factorization.

23145288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381 (or 4377 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 23145288 is about 4810.9549987502. The cubic root of 23145288 is about 284.9842527464.

It can be divided in two parts, 231452 and 88, that added together give a triangular number (231540 = T₆₈₀).

The spelling of 23145288 in words is "twenty-three million, one hundred forty-five thousand, two hundred eighty-eight".