1276642 has 16 divisors (see below), whose sum is σ = 2016000. Its totient is φ = 605520.

The previous prime is 1276637. The next prime is 1276657. The reversal of 1276642 is 2466721.

It is a self number, because there is not a number n which added to its sum of digits gives 1276642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3484 + ... + 3832.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

2^1276642 is an apocalyptic number.

1276642 is a deficient number, since it is larger than the sum of its proper divisors (739358).

1276642 is a wasteful number, since it uses less digits than its factorization.

1276642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441.

The product of its digits is 4032, while the sum is 28.

The square root of 1276642 is about 1129.8858349409. The cubic root of 1276642 is about 108.4816734463.

The spelling of 1276642 in words is "one million, two hundred seventy-six thousand, six hundred forty-two".