23381994 has 8 divisors (see below), whose sum is σ = 46764000. Its totient is φ = 7793996.

The previous prime is 23381993. The next prime is 23382011. The reversal of 23381994 is 49918332.

It is a sphenic number, since it is the product of 3 distinct primes.

23381994 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23381993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1948494 + ... + 1948505.

It is an arithmetic number, because the mean of its divisors is an integer number (5845500).

Almost surely, 2^23381994 is an apocalyptic number.

23381994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23381994 is a wasteful number, since it uses less digits than its factorization.

23381994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897004.

The product of its digits is 46656, while the sum is 39.

The square root of 23381994 is about 4835.4931496177. The cubic root of 23381994 is about 285.9524673643.

It can be divided in two parts, 2338199 and 4, that added together give a triangular number (2338203 = T₂₁₆₂).

The spelling of 23381994 in words is "twenty-three million, three hundred eighty-one thousand, nine hundred ninety-four".