1288662 has 16 divisors (see below), whose sum is σ = 2588592. Its totient is φ = 427680.

The previous prime is 1288657. The next prime is 1288691. The reversal of 1288662 is 2668821.

It is a congruent number.

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, 2112 + ... + 2652.

It is an arithmetic number, because the mean of its divisors is an integer number (161787).

2^1288662 is an apocalyptic number.

1288662 is an abundant number, since it is smaller than the sum of its proper divisors (1299930).

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

1288662 is a wasteful number, since it uses less digits than its factorization.

1288662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its digits is 9216, while the sum is 33.

The square root of 1288662 is about 1135.1924946898. The cubic root of 1288662 is about 108.8210738987.

The spelling of 1288662 in words is "one million, two hundred eighty-eight thousand, six hundred sixty-two".