12292642 has 8 divisors (see below), whose sum is σ = 18467100. Its totient is φ = 6136944.

The previous prime is 12292633. The next prime is 12292663. The reversal of 12292642 is 24629221.

It can be written as a sum of positive squares in 2 ways, for example, as 11634921 + 657721 = 3411^2 + 811^2 .

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

It is a super-2 number, since 2×12292642² = 302218094680328, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 12292642.

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, 2917 + ... + 5752.

Almost surely, 2^12292642 is an apocalyptic number.

12292642 is a deficient number, since it is larger than the sum of its proper divisors (6174458).

12292642 is an equidigital number, since it uses as much as digits as its factorization.

12292642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9380.

The product of its digits is 3456, while the sum is 28.

The square root of 12292642 is about 3506.0864222092. The cubic root of 12292642 is about 230.7889854143.

The spelling of 12292642 in words is "twelve million, two hundred ninety-two thousand, six hundred forty-two".