1276842 has 48 divisors (see below), whose sum is σ = 3069792. Its totient is φ = 352800.

The previous prime is 1276829. The next prime is 1276861. The reversal of 1276842 is 2486721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12592 + ... + 12692.

It is an arithmetic number, because the mean of its divisors is an integer number (63954).

2^1276842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1534896).

1276842 is an abundant number, since it is smaller than the sum of its proper divisors (1792950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1276842 is a wasteful number, since it uses less digits than its factorization.

1276842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 156 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 1276842 is about 1129.9743359918. The cubic root of 1276842 is about 108.4873380992.

The spelling of 1276842 in words is "one million, two hundred seventy-six thousand, eight hundred forty-two".