286949680 has 20 divisors (see below), whose sum is σ = 667158192. Its totient is φ = 114779840.

The previous prime is 286949659. The next prime is 286949731. The reversal of 286949680 is 86949682.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1793356 + ... + 1793515.

Almost surely, 2^286949680 is an apocalyptic number.

286949680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

286949680 is an abundant number, since it is smaller than the sum of its proper divisors (380208512).

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

286949680 is a wasteful number, since it uses less digits than its factorization.

286949680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586884 (or 3586878 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 286949680 is about 16939.5891331520. The cubic root of 286949680 is about 659.5816755298.

The spelling of 286949680 in words is "two hundred eighty-six million, nine hundred forty-nine thousand, six hundred eighty".