12940282 has 4 divisors (see below), whose sum is σ = 19410426. Its totient is φ = 6470140.

The previous prime is 12940253. The next prime is 12940289. The reversal of 12940282 is 28204921.

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., 11350161 + 1590121 = 3369^2 + 1261^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12940282.

It is not an unprimeable number, because it can be changed into a prime (12940289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3235069 + ... + 3235072.

Almost surely, 2^12940282 is an apocalyptic number.

12940282 is a deficient number, since it is larger than the sum of its proper divisors (6470144).

12940282 is an equidigital number, since it uses as much as digits as its factorization.

12940282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6470143.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12940282 is about 3597.2603464303. The cubic root of 12940282 is about 234.7728724487.

The spelling of 12940282 in words is "twelve million, nine hundred forty thousand, two hundred eighty-two".