12764642 has 16 divisors (see below), whose sum is σ = 20974464. Its totient is φ = 5778000.

The previous prime is 12764623. The next prime is 12764651. The reversal of 12764642 is 24646721.

It is a junction number, because it is equal to n+sod(n) for n = 12764599 and 12764608.

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 7 ways as a sum of consecutive naturals, for example, 4892 + ... + 7032.

It is an arithmetic number, because the mean of its divisors is an integer number (1310904).

Almost surely, 2^12764642 is an apocalyptic number.

12764642 is a deficient number, since it is larger than the sum of its proper divisors (8209822).

12764642 is a wasteful number, since it uses less digits than its factorization.

12764642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425.

The product of its digits is 16128, while the sum is 32.

The square root of 12764642 is about 3572.7639160739. The cubic root of 12764642 is about 233.7058299680.

The spelling of 12764642 in words is "twelve million, seven hundred sixty-four thousand, six hundred forty-two".