23320836 has 144 divisors (see below), whose sum is σ = 75479040. Its totient is φ = 5895360.

The previous prime is 23320831. The next prime is 23320859. The reversal of 23320836 is 63802332.

It is a super-2 number, since 2×23320836² = 1087722783477792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130195 + ... + 130373.

It is an arithmetic number, because the mean of its divisors is an integer number (524160).

Almost surely, 2^23320836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23320836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37739520).

23320836 is an abundant number, since it is smaller than the sum of its proper divisors (52158204).

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

23320836 is a wasteful number, since it uses less digits than its factorization.

23320836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 23320836 is about 4829.1651452399. The cubic root of 23320836 is about 285.7029370254.

The spelling of 23320836 in words is "twenty-three million, three hundred twenty thousand, eight hundred thirty-six".