286455228 has 12 divisors (see below), whose sum is σ = 668395560. Its totient is φ = 95485072.

The previous prime is 286455227. The next prime is 286455241. The reversal of 286455228 is 822554682.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 286455228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286455227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11935623 + ... + 11935646.

It is an arithmetic number, because the mean of its divisors is an integer number (55699630).

Almost surely, 2^286455228 is an apocalyptic number.

It is an amenable number.

286455228 is an abundant number, since it is smaller than the sum of its proper divisors (381940332).

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

286455228 is a wasteful number, since it uses less digits than its factorization.

286455228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23871276 (or 23871274 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 286455228 is about 16924.9882717832. The cubic root of 286455228 is about 659.2026090902.

The spelling of 286455228 in words is "two hundred eighty-six million, four hundred fifty-five thousand, two hundred twenty-eight".