641282806 has 16 divisors (see below), whose sum is σ = 1025261280. Its totient is φ = 299779200.

The previous prime is 641282791. The next prime is 641282827. The reversal of 641282806 is 608282146.

It is a super-2 number, since 2×641282806² = 822487274542467272, which contains 22 as substring.

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, 57321 + ... + 67588.

It is an arithmetic number, because the mean of its divisors is an integer number (64078830).

Almost surely, 2^641282806 is an apocalyptic number.

641282806 is a deficient number, since it is larger than the sum of its proper divisors (383978474).

641282806 is a wasteful number, since it uses less digits than its factorization.

641282806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125079.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 641282806 is about 25323.5622691595. The cubic root of 641282806 is about 862.3492671128.

The spelling of 641282806 in words is "six hundred forty-one million, two hundred eighty-two thousand, eight hundred six".