23123394 has 72 divisors (see below), whose sum is σ = 60501168. Its totient is φ = 6599880.

The previous prime is 23123393. The next prime is 23123461. The reversal of 23123394 is 49332132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23123393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23329 + ... + 24299.

It is an arithmetic number, because the mean of its divisors is an integer number (840294).

Almost surely, 2^23123394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23123394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30250584).

23123394 is an abundant number, since it is smaller than the sum of its proper divisors (37377774).

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

23123394 is an equidigital number, since it uses as much as digits as its factorization.

23123394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 983 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 23123394 is about 4808.6790285899. The cubic root of 23123394 is about 284.8943652837.

The spelling of 23123394 in words is "twenty-three million, one hundred twenty-three thousand, three hundred ninety-four".