1316772 has 36 divisors (see below), whose sum is σ = 3377920. Its totient is φ = 432432.

The previous prime is 1316767. The next prime is 1316779. The reversal of 1316772 is 2776131.

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

It is not an unprimeable number, because it can be changed into a prime (1316779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2613 + ... + 3075.

2^1316772 is an apocalyptic number.

1316772 is a gapful number since it is divisible by the number (12) 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 1316772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1688960).

1316772 is an abundant number, since it is smaller than the sum of its proper divisors (2061148).

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

1316772 is a wasteful number, since it uses less digits than its factorization.

1316772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 547 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 1316772 is about 1147.5068627246. The cubic root of 1316772 is about 109.6066390920.

It can be divided in two parts, 131 and 6772, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 1316772 in words is "one million, three hundred sixteen thousand, seven hundred seventy-two".