12390674 has 4 divisors (see below), whose sum is σ = 18586014. Its totient is φ = 6195336.

The previous prime is 12390673. The next prime is 12390701. The reversal of 12390674 is 47609321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47609321 = 389 ⋅122389.

It can be written as a sum of positive squares in only one way, i.e., 9878449 + 2512225 = 3143^2 + 1585^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12390674.

It is not an unprimeable number, because it can be changed into a prime (12390673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3097667 + ... + 3097670.

Almost surely, 2^12390674 is an apocalyptic number.

12390674 is a deficient number, since it is larger than the sum of its proper divisors (6195340).

12390674 is an equidigital number, since it uses as much as digits as its factorization.

12390674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6195339.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 12390674 is about 3520.0389202394. The cubic root of 12390674 is about 231.4008644006.

Adding to 12390674 its reverse (47609321), we get a palindrome (59999995).

The spelling of 12390674 in words is "twelve million, three hundred ninety thousand, six hundred seventy-four".