12427120 has 40 divisors (see below), whose sum is σ = 29100816. Its totient is φ = 4935168.

The previous prime is 12427117. The next prime is 12427139. The reversal of 12427120 is 2172421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×12427120² = 308866622988800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12564 + ... + 13516.

Almost surely, 2^12427120 is an apocalyptic number.

12427120 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 12427120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14550408).

12427120 is an abundant number, since it is smaller than the sum of its proper divisors (16673696).

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

12427120 is a wasteful number, since it uses less digits than its factorization.

12427120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 12427120 is about 3525.2120503595. The cubic root of 12427120 is about 231.6275235927.

Adding to 12427120 its reverse (2172421), we get a palindrome (14599541).

The spelling of 12427120 in words is "twelve million, four hundred twenty-seven thousand, one hundred twenty".