286640022 has 8 divisors (see below), whose sum is σ = 573280056. Its totient is φ = 95546672.

The previous prime is 286640017. The next prime is 286640027. The reversal of 286640022 is 220046682.

286640022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (286640017) and next prime (286640027).

It is a sphenic number, since it is the product of 3 distinct primes.

286640022 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286640027) 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, 23886663 + ... + 23886674.

It is an arithmetic number, because the mean of its divisors is an integer number (71660007).

Almost surely, 2^286640022 is an apocalyptic number.

286640022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

286640022 is a wasteful number, since it uses less digits than its factorization.

286640022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47773342.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 286640022 is about 16930.4465977717. The cubic root of 286640022 is about 659.3443304828.

The spelling of 286640022 in words is "two hundred eighty-six million, six hundred forty thousand, twenty-two".