1316722 has 12 divisors (see below), whose sum is σ = 2171358. Its totient is φ = 598400.

The previous prime is 1316717. The next prime is 1316729. The reversal of 1316722 is 2276131.

It can be written as a sum of positive squares in only one way, i.e., 1002001 + 314721 = 1001^2 + 561^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1316693 and 1316702.

It is not an unprimeable number, because it can be changed into a prime (1316729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2479 + ... + 2962.

2^1316722 is an apocalyptic number.

1316722 is a deficient number, since it is larger than the sum of its proper divisors (854636).

1316722 is a wasteful number, since it uses less digits than its factorization.

1316722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465 (or 5454 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 1316722 is about 1147.4850761557. The cubic root of 1316722 is about 109.6052517596.

The spelling of 1316722 in words is "one million, three hundred sixteen thousand, seven hundred twenty-two".