1285676 has 48 divisors (see below), whose sum is σ = 2834496. Its totient is φ = 497664.

The previous prime is 1285649. The next prime is 1285679. The reversal of 1285676 is 6765821.

It is not an unprimeable number, because it can be changed into a prime (1285679) 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 15 ways as a sum of consecutive naturals, for example, 17576 + ... + 17648.

It is an arithmetic number, because the mean of its divisors is an integer number (59052).

2^1285676 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 1285676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1417248).

1285676 is an abundant number, since it is smaller than the sum of its proper divisors (1548820).

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

1285676 is a wasteful number, since it uses less digits than its factorization.

1285676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 136 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 1285676 is about 1133.8765364889. The cubic root of 1285676 is about 108.7369579639.

The spelling of 1285676 in words is "one million, two hundred eighty-five thousand, six hundred seventy-six".