286688466 has 12 divisors (see below), whose sum is σ = 621158382. Its totient is φ = 95562816.

The previous prime is 286688431. The next prime is 286688489. The reversal of 286688466 is 664886682.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 206066025 + 80622441 = 14355^2 + 8979^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7963551 + ... + 7963586.

Almost surely, 2^286688466 is an apocalyptic number.

286688466 is an abundant number, since it is smaller than the sum of its proper divisors (334469916).

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

286688466 is a wasteful number, since it uses less digits than its factorization.

286688466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15927145 (or 15927142 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The square root of 286688466 is about 16931.8772142961. The cubic root of 286688466 is about 659.3814728623.

The spelling of 286688466 in words is "two hundred eighty-six million, six hundred eighty-eight thousand, four hundred sixty-six".