23097240 has 96 divisors (see below), whose sum is σ = 76068720. Its totient is φ = 6077184.

The previous prime is 23097211. The next prime is 23097247. The reversal of 23097240 is 4279032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23097247) 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, 29494 + ... + 30266.

Almost surely, 2^23097240 is an apocalyptic number.

23097240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23097240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38034360).

23097240 is an abundant number, since it is smaller than the sum of its proper divisors (52971480).

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

23097240 is a wasteful number, since it uses less digits than its factorization.

23097240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 866 counting only the distinct ones).

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

The square root of 23097240 is about 4805.9588013215. The cubic root of 23097240 is about 284.7869136667.

The spelling of 23097240 in words is "twenty-three million, ninety-seven thousand, two hundred forty".