12423040 has 128 divisors (see below), whose sum is σ = 35251200. Its totient is φ = 4098048.

The previous prime is 12423031. The next prime is 12423053. The reversal of 12423040 is 4032421.

12423040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210531 + ... + 210589.

It is an arithmetic number, because the mean of its divisors is an integer number (275400).

Almost surely, 2^12423040 is an apocalyptic number.

12423040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17625600).

12423040 is an abundant number, since it is smaller than the sum of its proper divisors (22828160).

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

12423040 is an equidigital number, since it uses as much as digits as its factorization.

12423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 120 counting only the distinct ones).

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

The square root of 12423040 is about 3524.6333142612. The cubic root of 12423040 is about 231.6021719494.

Adding to 12423040 its reverse (4032421), we get a palindrome (16455461).

The spelling of 12423040 in words is "twelve million, four hundred twenty-three thousand, forty".