1071306 has 40 divisors (see below), whose sum is σ = 2548260. Its totient is φ = 335232.

The previous prime is 1071283. The next prime is 1071311. The reversal of 1071306 is 6031701.

It can be written as a sum of positive squares in 2 ways, for example, as 1071225 + 81 = 1035^2 + 9^2 .

It is a super-2 number, since 2×1071306² = 2295393091272, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2560 + ... + 2948.

2^1071306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274130).

1071306 is an abundant number, since it is smaller than the sum of its proper divisors (1476954).

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

1071306 is a wasteful number, since it uses less digits than its factorization.

1071306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 1071306 is about 1035.0391296951. The cubic root of 1071306 is about 102.3225086134.

The spelling of 1071306 in words is "one million, seventy-one thousand, three hundred six".