1030806 has 56 divisors (see below), whose sum is σ = 2675664. Its totient is φ = 291600.

The previous prime is 1030801. The next prime is 1030811. The reversal of 1030806 is 6080301.

It is an interprime number because it is at equal distance from previous prime (1030801) and next prime (1030811).

It is a super-2 number, since 2×1030806² = 2125122019272, which contains 22 as substring.

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

It is a Curzon number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 10156 + ... + 10256.

2^1030806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337832).

1030806 is an abundant number, since it is smaller than the sum of its proper divisors (1644858).

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

1030806 is an equidigital number, since it uses as much as digits as its factorization.

1030806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1030806 is about 1015.2861665560. The cubic root of 1030806 is about 101.0164989548.

The spelling of 1030806 in words is "one million, thirty thousand, eight hundred six".