12427072 has 28 divisors (see below), whose sum is σ = 28183840. Its totient is φ = 5325696.

The previous prime is 12427057. The next prime is 12427073. The reversal of 12427072 is 27072421.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12427073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13422 + ... + 14317.

Almost surely, 2^12427072 is an apocalyptic number.

It is an amenable number.

12427072 is an abundant number, since it is smaller than the sum of its proper divisors (15756768).

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

12427072 is an equidigital number, since it uses as much as digits as its factorization.

12427072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27758 (or 27748 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 12427072 is about 3525.2052422519. The cubic root of 12427072 is about 231.6272253703.

Adding to 12427072 its reverse (27072421), we get a palindrome (39499493).

The spelling of 12427072 in words is "twelve million, four hundred twenty-seven thousand, seventy-two".