1491288 has 16 divisors (see below), whose sum is σ = 3728280. Its totient is φ = 497088.

The previous prime is 1491271. The next prime is 1491299. The reversal of 1491288 is 8821941.

It is an Ulam number.

It is a congruent number.

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, 31045 + ... + 31092.

2^1491288 is an apocalyptic number.

It is an amenable number.

1491288 is an abundant number, since it is smaller than the sum of its proper divisors (2236992).

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

1491288 is a wasteful number, since it uses less digits than its factorization.

1491288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62146 (or 62142 counting only the distinct ones).

The product of its digits is 4608, while the sum is 33.

The square root of 1491288 is about 1221.1830329643. The cubic root of 1491288 is about 114.2493771383.

The spelling of 1491288 in words is "one million, four hundred ninety-one thousand, two hundred eighty-eight".