1288492 has 12 divisors (see below), whose sum is σ = 2282616. Its totient is φ = 636320.

The previous prime is 1288487. The next prime is 1288513. The reversal of 1288492 is 2948821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609 + ... + 2272.

It is an arithmetic number, because the mean of its divisors is an integer number (190218).

2^1288492 is an apocalyptic number.

It is an amenable number.

1288492 is a deficient number, since it is larger than the sum of its proper divisors (994124).

1288492 is a wasteful number, since it uses less digits than its factorization.

1288492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968 (or 3966 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 1288492 is about 1135.1176150514. The cubic root of 1288492 is about 108.8162884711.

The spelling of 1288492 in words is "one million, two hundred eighty-eight thousand, four hundred ninety-two".