12490394 has 12 divisors (see below), whose sum is σ = 21794634. Its totient is φ = 5352984.

The previous prime is 12490369. The next prime is 12490397. The reversal of 12490394 is 49309421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6315169 + 6175225 = 2513^2 + 2485^2 .

It is a Curzon number.

It is a plaindrome in base 15.

It is a nialpdrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 12490394.

It is not an unprimeable number, because it can be changed into a prime (12490397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63629 + ... + 63824.

Almost surely, 2^12490394 is an apocalyptic number.

12490394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12490394 is a deficient number, since it is larger than the sum of its proper divisors (9304240).

12490394 is a wasteful number, since it uses less digits than its factorization.

12490394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127469 (or 127462 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 12490394 is about 3534.1751512906. The cubic root of 12490394 is about 232.0199769758.

The spelling of 12490394 in words is "twelve million, four hundred ninety thousand, three hundred ninety-four".