812258286 has 32 divisors (see below), whose sum is σ = 1884307200. Its totient is φ = 228609216.

The previous prime is 812258281. The next prime is 812258287. The reversal of 812258286 is 682852218.

812258286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812258281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141511 + ... + 147138.

It is an arithmetic number, because the mean of its divisors is an integer number (58884600).

Almost surely, 2^812258286 is an apocalyptic number.

812258286 is an abundant number, since it is smaller than the sum of its proper divisors (1072048914).

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

812258286 is a wasteful number, since it uses less digits than its factorization.

812258286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288728.

The product of its digits is 122880, while the sum is 42.

The square root of 812258286 is about 28500.1453680503. The cubic root of 812258286 is about 933.0352466727.

The spelling of 812258286 in words is "eight hundred twelve million, two hundred fifty-eight thousand, two hundred eighty-six".