12457282 has 8 divisors (see below), whose sum is σ = 18706176. Its totient is φ = 6221892.

The previous prime is 12457219. The next prime is 12457301. The reversal of 12457282 is 28275421.

It is a happy number.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618 + ... + 5029.

It is an arithmetic number, because the mean of its divisors is an integer number (2338272).

Almost surely, 2^12457282 is an apocalyptic number.

12457282 is a deficient number, since it is larger than the sum of its proper divisors (6248894).

12457282 is a wasteful number, since it uses less digits than its factorization.

12457282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6752.

The product of its digits is 8960, while the sum is 31.

The square root of 12457282 is about 3529.4874982071. The cubic root of 12457282 is about 231.8147674261.

The spelling of 12457282 in words is "twelve million, four hundred fifty-seven thousand, two hundred eighty-two".