1071406 has 16 divisors (see below), whose sum is σ = 1857024. Its totient is φ = 454104.

The previous prime is 1071401. The next prime is 1071407. The reversal of 1071406 is 6041701.

It is a happy number.

It is a super-2 number, since 2×1071406² = 2295821633672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071 + ... + 1813.

It is an arithmetic number, because the mean of its divisors is an integer number (116064).

2^1071406 is an apocalyptic number.

1071406 is a deficient number, since it is larger than the sum of its proper divisors (785618).

1071406 is a wasteful number, since it uses less digits than its factorization.

1071406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1071406 is about 1035.0874359203. The cubic root of 1071406 is about 102.3256922455.

The spelling of 1071406 in words is "one million, seventy-one thousand, four hundred six".