23031894 has 16 divisors (see below), whose sum is σ = 46111680. Its totient is φ = 7669320.

The previous prime is 23031893. The next prime is 23031907. The reversal of 23031894 is 49813032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031893) 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, 8529 + ... + 10899.

It is an arithmetic number, because the mean of its divisors is an integer number (2881980).

Almost surely, 2^23031894 is an apocalyptic number.

23031894 is an abundant number, since it is smaller than the sum of its proper divisors (23079786).

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

23031894 is a wasteful number, since it uses less digits than its factorization.

23031894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 23031894 is about 4799.1555507193. The cubic root of 23031894 is about 284.5180898696.

The spelling of 23031894 in words is "twenty-three million, thirty-one thousand, eight hundred ninety-four".