1081009806 has 16 divisors (see below), whose sum is σ = 2175285504. Its totient is φ = 358125624.

The previous prime is 1081009793. The next prime is 1081009817. The reversal of 1081009806 is 6089001801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551686 + ... + 553641.

It is an arithmetic number, because the mean of its divisors is an integer number (135955344).

Almost surely, 2^1081009806 is an apocalyptic number.

1081009806 is an abundant number, since it is smaller than the sum of its proper divisors (1094275698).

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

1081009806 is a wasteful number, since it uses less digits than its factorization.

1081009806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105495.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1081009806 is about 32878.7135697247. The cubic root of 1081009806 is about 1026.3052357983.

The spelling of 1081009806 in words is "one billion, eighty-one million, nine thousand, eight hundred six".