23216900 has 72 divisors (see below), whose sum is σ = 60996096. Its totient is φ = 7488000.

The previous prime is 23216899. The next prime is 23216903. The reversal of 23216900 is 961232.

It is a super-2 number, since 2×23216900² = 1078048891220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216903) 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, 10925 + ... + 12875.

It is an arithmetic number, because the mean of its divisors is an integer number (847168).

Almost surely, 2^23216900 is an apocalyptic number.

23216900 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 23216900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30498048).

23216900 is an abundant number, since it is smaller than the sum of its proper divisors (37779196).

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

23216900 is a wasteful number, since it uses less digits than its factorization.

23216900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 23216900 is about 4818.3918479094. The cubic root of 23216900 is about 285.2778658643.

The spelling of 23216900 in words is "twenty-three million, two hundred sixteen thousand, nine hundred".