23423136 has 96 divisors (see below), whose sum is σ = 68838336. Its totient is φ = 6912000.

The previous prime is 23423129. The next prime is 23423137. The reversal of 23423136 is 63132432.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (23423137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43026 + ... + 43566.

It is an arithmetic number, because the mean of its divisors is an integer number (717066).

Almost surely, 2^23423136 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 23423136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34419168).

23423136 is an abundant number, since it is smaller than the sum of its proper divisors (45415200).

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

23423136 is a wasteful number, since it uses less digits than its factorization.

23423136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 598 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The square root of 23423136 is about 4839.7454478516. The cubic root of 23423136 is about 286.1200858452.

Adding to 23423136 its reverse (63132432), we get a palindrome (86555568).

The spelling of 23423136 in words is "twenty-three million, four hundred twenty-three thousand, one hundred thirty-six".