23400344 has 32 divisors (see below), whose sum is σ = 48686400. Its totient is φ = 10453920.

The previous prime is 23400341. The next prime is 23400367. The reversal of 23400344 is 44300432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23400341) 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, 2939 + ... + 7445.

It is an arithmetic number, because the mean of its divisors is an integer number (1521450).

Almost surely, 2^23400344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23400344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24343200).

23400344 is an abundant number, since it is smaller than the sum of its proper divisors (25286056).

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

23400344 is a wasteful number, since it uses less digits than its factorization.

23400344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583 (or 4579 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 23400344 is about 4837.3902054724. The cubic root of 23400344 is about 286.0272521996.

Adding to 23400344 its reverse (44300432), we get a palindrome (67700776).

The spelling of 23400344 in words is "twenty-three million, four hundred thousand, three hundred forty-four".