23290272 has 144 divisors (see below), whose sum is σ = 72176832. Its totient is φ = 7096320.

The previous prime is 23290271. The next prime is 23290273. The reversal of 23290272 is 27209232.

It is an interprime number because it is at equal distance from previous prime (23290271) and next prime (23290273).

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (23290271) 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, 327997 + ... + 328067.

It is an arithmetic number, because the mean of its divisors is an integer number (501228).

Almost surely, 2^23290272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23290272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36088416).

23290272 is an abundant number, since it is smaller than the sum of its proper divisors (48886560).

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

23290272 is a wasteful number, since it uses less digits than its factorization.

23290272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 23290272 is about 4825.9995855781. Note that the first 3 decimals coincide. The cubic root of 23290272 is about 285.5780695446.

The spelling of 23290272 in words is "twenty-three million, two hundred ninety thousand, two hundred seventy-two".