23366240 has 48 divisors (see below), whose sum is σ = 56709072. Its totient is φ = 9091584.

The previous prime is 23366237. The next prime is 23366263. The reversal of 23366240 is 4266332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3947 + ... + 7893.

It is an arithmetic number, because the mean of its divisors is an integer number (1181439).

Almost surely, 2^23366240 is an apocalyptic number.

23366240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

23366240 is the 3947-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23366240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28354536).

23366240 is an abundant number, since it is smaller than the sum of its proper divisors (33342832).

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

23366240 is a wasteful number, since it uses less digits than its factorization.

23366240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999 (or 3991 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 23366240 is about 4833.8638789275. The cubic root of 23366240 is about 285.8882312217. Note that the first 3 decimals are identical.

The spelling of 23366240 in words is "twenty-three million, three hundred sixty-six thousand, two hundred forty".