23939136 has 168 divisors, whose sum is σ = 77663040. Its totient is φ = 6994944.

The previous prime is 23939101. The next prime is 23939143. The reversal of 23939136 is 63193932.

It is a happy number.

23939136 is a `hidden beast` number, since 239 + 391 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 23939136.

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, 172155 + ... + 172293.

It is an arithmetic number, because the mean of its divisors is an integer number (462280).

Almost surely, 2^23939136 is an apocalyptic number.

23939136 is a gapful number since it is divisible by the number (26) 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 23939136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38831520).

23939136 is an abundant number, since it is smaller than the sum of its proper divisors (53723904).

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

23939136 is a wasteful number, since it uses less digits than its factorization.

23939136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 180 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 23939136 is about 4892.7636362285. The cubic root of 23939136 is about 288.2058713203.

The spelling of 23939136 in words is "twenty-three million, nine hundred thirty-nine thousand, one hundred thirty-six".