23381946 has 112 divisors (see below), whose sum is σ = 62956800. Its totient is φ = 6368544.

The previous prime is 23381929. The next prime is 23381993. The reversal of 23381946 is 64918332.

It is a self number, because there is not a number n which added to its sum of digits gives 23381946.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 295935 + ... + 296013.

Almost surely, 2^23381946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23381946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31478400).

23381946 is an abundant number, since it is smaller than the sum of its proper divisors (39574854).

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

23381946 is an equidigital number, since it uses as much as digits as its factorization.

23381946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 120 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 23381946 is about 4835.4881863158. The cubic root of 23381946 is about 285.9522716905.

The spelling of 23381946 in words is "twenty-three million, three hundred eighty-one thousand, nine hundred forty-six".