12439268 has 6 divisors (see below), whose sum is σ = 21768726. Its totient is φ = 6219632.

The previous prime is 12439253. The next prime is 12439279. The reversal of 12439268 is 86293421.

It can be written as a sum of positive squares in only one way, i.e., 11888704 + 550564 = 3448^2 + 742^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1554905 + ... + 1554912.

It is an arithmetic number, because the mean of its divisors is an integer number (3628121).

Almost surely, 2^12439268 is an apocalyptic number.

It is an amenable number.

12439268 is a deficient number, since it is larger than the sum of its proper divisors (9329458).

12439268 is a wasteful number, since it uses less digits than its factorization.

12439268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109821 (or 3109819 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 12439268 is about 3526.9346464033. The cubic root of 12439268 is about 231.7029740265.

The spelling of 12439268 in words is "twelve million, four hundred thirty-nine thousand, two hundred sixty-eight".