806041278 has 144 divisors (see below), whose sum is σ = 2123302896. Its totient is φ = 220147200.

The previous prime is 806041267. The next prime is 806041363. The reversal of 806041278 is 872140608.

806041278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×806041278³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2009878 + ... + 2010278.

It is an arithmetic number, because the mean of its divisors is an integer number (14745159).

Almost surely, 2^806041278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 806041278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061651448).

806041278 is an abundant number, since it is smaller than the sum of its proper divisors (1317261618).

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

806041278 is a wasteful number, since it uses less digits than its factorization.

806041278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 806041278 is about 28390.8661016180. The cubic root of 806041278 is about 930.6486698930.

The spelling of 806041278 in words is "eight hundred six million, forty-one thousand, two hundred seventy-eight".