411985806 has 16 divisors (see below), whose sum is σ = 833230800. Its totient is φ = 135785408.

The previous prime is 411985789. The next prime is 411985817. The reversal of 411985806 is 608589114.

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, 385221 + ... + 386288.

It is an arithmetic number, because the mean of its divisors is an integer number (52076925).

Almost surely, 2^411985806 is an apocalyptic number.

411985806 is an abundant number, since it is smaller than the sum of its proper divisors (421244994).

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

411985806 is a wasteful number, since it uses less digits than its factorization.

411985806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771603.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 411985806 is about 20297.4334830786. The cubic root of 411985806 is about 744.0933408444.

The spelling of 411985806 in words is "four hundred eleven million, nine hundred eighty-five thousand, eight hundred six".