1312288 has 24 divisors (see below), whose sum is σ = 2697408. Its totient is φ = 627264.

The previous prime is 1312277. The next prime is 1312301. The reversal of 1312288 is 8822131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156 + ... + 1627.

It is an arithmetic number, because the mean of its divisors is an integer number (112392).

2^1312288 is an apocalyptic number.

It is an amenable number.

1312288 is an abundant number, since it is smaller than the sum of its proper divisors (1385120).

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

1312288 is a wasteful number, since it uses less digits than its factorization.

1312288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1808 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 1312288 is about 1145.5513956170. The cubic root of 1312288 is about 109.4820832080.

It can be divided in two parts, 1312 and 288, that added together give a square (1600 = 40²).

The spelling of 1312288 in words is "one million, three hundred twelve thousand, two hundred eighty-eight".