1246642 has 4 divisors (see below), whose sum is σ = 1869966. Its totient is φ = 623320.

The previous prime is 1246639. The next prime is 1246667. The reversal of 1246642 is 2466421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2466421 = 29 ⋅85049.

It can be written as a sum of positive squares in only one way, i.e., 1234321 + 12321 = 1111^2 + 111^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311659 + ... + 311662.

2^1246642 is an apocalyptic number.

1246642 is a deficient number, since it is larger than the sum of its proper divisors (623324).

1246642 is an equidigital number, since it uses as much as digits as its factorization.

1246642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623323.

The product of its digits is 2304, while the sum is 25.

The square root of 1246642 is about 1116.5312355684. The cubic root of 1246642 is about 107.6251867721.

The spelling of 1246642 in words is "one million, two hundred forty-six thousand, six hundred forty-two".