1311084 has 36 divisors (see below), whose sum is σ = 3363360. Its totient is φ = 430560.

The previous prime is 1311067. The next prime is 1311097. The reversal of 1311084 is 4801131.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2614 + ... + 3074.

2^1311084 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 1311084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681680).

1311084 is an abundant number, since it is smaller than the sum of its proper divisors (2052276).

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

1311084 is a wasteful number, since it uses less digits than its factorization.

1311084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1311084 is about 1145.0257639023. The cubic root of 1311084 is about 109.4485903665.

The spelling of 1311084 in words is "one million, three hundred eleven thousand, eighty-four".