1286604 has 90 divisors (see below), whose sum is σ = 3872484. Its totient is φ = 369360.

The previous prime is 1286587. The next prime is 1286617. The reversal of 1286604 is 4066821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 67707 + ... + 67725.

2^1286604 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 1286604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936242).

1286604 is an abundant number, since it is smaller than the sum of its proper divisors (2585880).

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

1286604 is a wasteful number, since it uses less digits than its factorization.

1286604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 35 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1286604 is about 1134.2856783015. The cubic root of 1286604 is about 108.7631137575.

The spelling of 1286604 in words is "one million, two hundred eighty-six thousand, six hundred four".