12423400 has 48 divisors (see below), whose sum is σ = 31515840. Its totient is φ = 4516800.

The previous prime is 12423377. The next prime is 12423401. The reversal of 12423400 is 432421.

12423400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12423401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 624 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (656580).

Almost surely, 2^12423400 is an apocalyptic number.

12423400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12423400 is an abundant number, since it is smaller than the sum of its proper divisors (19092440).

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

12423400 is a wasteful number, since it uses less digits than its factorization.

12423400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674 (or 5665 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12423400 is about 3524.6843830335. The cubic root of 12423400 is about 231.6044090824.

Adding to 12423400 its reverse (432421), we get a palindrome (12855821).

The spelling of 12423400 in words is "twelve million, four hundred twenty-three thousand, four hundred".