1318912 has 56 divisors (see below), whose sum is σ = 3145536. Its totient is φ = 540672.

The previous prime is 1318903. The next prime is 1318913. The reversal of 1318912 is 2198131.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (1318913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57333 + ... + 57355.

2^1318912 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 1318912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572768).

1318912 is an abundant number, since it is smaller than the sum of its proper divisors (1826624).

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

1318912 is an frugal number, since it uses more digits than its factorization.

1318912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56 (or 32 counting only the distinct ones).

The product of its digits is 432, while the sum is 25.

The square root of 1318912 is about 1148.4389404753. The cubic root of 1318912 is about 109.6659840293.

The spelling of 1318912 in words is "one million, three hundred eighteen thousand, nine hundred twelve".