23396736 has 128 divisors (see below), whose sum is σ = 70502400. Its totient is φ = 6809600.

The previous prime is 23396729. The next prime is 23396749. The reversal of 23396736 is 63769332.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 23396694 and 23396703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122401 + ... + 122591.

It is an arithmetic number, because the mean of its divisors is an integer number (550800).

Almost surely, 2^23396736 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 23396736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35251200).

23396736 is an abundant number, since it is smaller than the sum of its proper divisors (47105664).

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

23396736 is a wasteful number, since it uses less digits than its factorization.

23396736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 236 counting only the distinct ones).

The product of its digits is 122472, while the sum is 39.

The square root of 23396736 is about 4837.0172627354. The cubic root of 23396736 is about 286.0125510002.

It can be divided in two parts, 233 and 96736, that added together give a palindrome (96969).

The spelling of 23396736 in words is "twenty-three million, three hundred ninety-six thousand, seven hundred thirty-six".