1276616 has 32 divisors (see below), whose sum is σ = 2656800. Its totient is φ = 570240.

The previous prime is 1276603. The next prime is 1276619. The reversal of 1276616 is 6166721.

It is a super-2 number, since 2×1276616² = 3259496822912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1276619) by changing a digit.

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, 7751 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (83025).

2^1276616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328400).

1276616 is an abundant number, since it is smaller than the sum of its proper divisors (1380184).

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

1276616 is a wasteful number, since it uses less digits than its factorization.

1276616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 265 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 1276616 is about 1129.8743292951. The cubic root of 1276616 is about 108.4809369979.

The spelling of 1276616 in words is "one million, two hundred seventy-six thousand, six hundred sixteen".