23236920 has 96 divisors (see below), whose sum is σ = 86317920. Its totient is φ = 5310720.

The previous prime is 23236919. The next prime is 23236957. The reversal of 23236920 is 2963232.

It is a congruent number.

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, 2091 + ... + 7130.

It is an arithmetic number, because the mean of its divisors is an integer number (899145).

Almost surely, 2^23236920 is an apocalyptic number.

23236920 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 23236920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43158960).

23236920 is an abundant number, since it is smaller than the sum of its proper divisors (63081000).

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

23236920 is a wasteful number, since it uses less digits than its factorization.

23236920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9245 (or 9238 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 23236920 is about 4820.4688568644. The cubic root of 23236920 is about 285.3598409492.

The spelling of 23236920 in words is "twenty-three million, two hundred thirty-six thousand, nine hundred twenty".