12437242 has 4 divisors (see below), whose sum is σ = 18655866. Its totient is φ = 6218620.

The previous prime is 12437239. The next prime is 12437261. The reversal of 12437242 is 24273421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9678321 + 2758921 = 3111^2 + 1661^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3109309 + ... + 3109312.

Almost surely, 2^12437242 is an apocalyptic number.

12437242 is a deficient number, since it is larger than the sum of its proper divisors (6218624).

12437242 is an equidigital number, since it uses as much as digits as its factorization.

12437242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6218623.

The product of its digits is 2688, while the sum is 25.

The square root of 12437242 is about 3526.6474164566. The cubic root of 12437242 is about 231.6903940871.

The spelling of 12437242 in words is "twelve million, four hundred thirty-seven thousand, two hundred forty-two".