12489394 has 8 divisors (see below), whose sum is σ = 18755100. Its totient is φ = 6237696.

The previous prime is 12489371. The next prime is 12489427. The reversal of 12489394 is 49398421.

It can be written as a sum of positive squares in 2 ways, for example, as 12341169 + 148225 = 3513^2 + 385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 879 + ... + 5074.

Almost surely, 2^12489394 is an apocalyptic number.

12489394 is a deficient number, since it is larger than the sum of its proper divisors (6265706).

12489394 is a wasteful number, since it uses less digits than its factorization.

12489394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7004.

The product of its digits is 62208, while the sum is 40.

The square root of 12489394 is about 3534.0336727315. The cubic root of 12489394 is about 232.0137848527.

The spelling of 12489394 in words is "twelve million, four hundred eighty-nine thousand, three hundred ninety-four".