286989248 has 56 divisors (see below), whose sum is σ = 700930272. Its totient is φ = 113531904.

The previous prime is 286989233. The next prime is 286989251. The reversal of 286989248 is 842989682.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 286989193 and 286989202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18815 + ... + 30462.

It is an arithmetic number, because the mean of its divisors is an integer number (12516612).

Almost surely, 2^286989248 is an apocalyptic number.

286989248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

286989248 is an abundant number, since it is smaller than the sum of its proper divisors (413941024).

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

286989248 is a wasteful number, since it uses less digits than its factorization.

286989248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49309 (or 49299 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 56.

The square root of 286989248 is about 16940.7570078790. The cubic root of 286989248 is about 659.6119910986.

The spelling of 286989248 in words is "two hundred eighty-six million, nine hundred eighty-nine thousand, two hundred forty-eight".