23381736 has 32 divisors (see below), whose sum is σ = 66805440. Its totient is φ = 6680448.

The previous prime is 23381717. The next prime is 23381737. The reversal of 23381736 is 63718332.

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

It is a junction number, because it is equal to n+sod(n) for n = 23381697 and 23381706.

It is not an unprimeable number, because it can be changed into a prime (23381737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69421 + ... + 69756.

It is an arithmetic number, because the mean of its divisors is an integer number (2087670).

Almost surely, 2^23381736 is an apocalyptic number.

It is an amenable number.

23381736 is an abundant number, since it is smaller than the sum of its proper divisors (43423704).

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

23381736 is a wasteful number, since it uses less digits than its factorization.

23381736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139193 (or 139189 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 23381736 is about 4835.4664718101. The cubic root of 23381736 is about 285.9514156147.

The spelling of 23381736 in words is "twenty-three million, three hundred eighty-one thousand, seven hundred thirty-six".