23316840 has 96 divisors (see below), whose sum is σ = 76377600. Its totient is φ = 6168960.

The previous prime is 23316829. The next prime is 23316851. The reversal of 23316840 is 4861332.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23316829) and next prime (23316851).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85905 + ... + 86175.

It is an arithmetic number, because the mean of its divisors is an integer number (795600).

Almost surely, 2^23316840 is an apocalyptic number.

23316840 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 23316840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38188800).

23316840 is an abundant number, since it is smaller than the sum of its proper divisors (53060760).

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

23316840 is a wasteful number, since it uses less digits than its factorization.

23316840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 23316840 is about 4828.7513914054. The cubic root of 23316840 is about 285.6866177970.

The spelling of 23316840 in words is "twenty-three million, three hundred sixteen thousand, eight hundred forty".