1316940 has 48 divisors (see below), whose sum is σ = 3773952. Its totient is φ = 342976.

The previous prime is 1316923. The next prime is 1316951. The reversal of 1316940 is 496131.

It is a self number, because there is not a number n which added to its sum of digits gives 1316940.

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 15 ways as a sum of consecutive naturals, for example, 2587 + ... + 3053.

It is an arithmetic number, because the mean of its divisors is an integer number (78624).

2^1316940 is an apocalyptic number.

1316940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886976).

1316940 is an abundant number, since it is smaller than the sum of its proper divisors (2457012).

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

1316940 is a wasteful number, since it uses less digits than its factorization.

1316940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1316940 is about 1147.5800625664. The cubic root of 1316940 is about 109.6113002716.

The spelling of 1316940 in words is "one million, three hundred sixteen thousand, nine hundred forty".