12427974 has 48 divisors (see below), whose sum is σ = 29261232. Its totient is φ = 3789504.

The previous prime is 12427951. The next prime is 12427991. The reversal of 12427974 is 47972421.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 40329 + ... + 40635.

It is an arithmetic number, because the mean of its divisors is an integer number (609609).

Almost surely, 2^12427974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12427974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14630616).

12427974 is an abundant number, since it is smaller than the sum of its proper divisors (16833258).

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

12427974 is a wasteful number, since it uses less digits than its factorization.

12427974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 498 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 12427974 is about 3525.3331757438. Note that the first 3 decimals coincide. The cubic root of 12427974 is about 231.6328293373.

It can be divided in two parts, 1242 and 7974, that added together give a square (9216 = 96²).

The spelling of 12427974 in words is "twelve million, four hundred twenty-seven thousand, nine hundred seventy-four".