289229228 has 12 divisors (see below), whose sum is σ = 535924872. Its totient is φ = 136107840.

The previous prime is 289229219. The next prime is 289229251. The reversal of 289229228 is 822922982.

It is a happy number.

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, 2126618 + ... + 2126753.

It is an arithmetic number, because the mean of its divisors is an integer number (44660406).

Almost surely, 2^289229228 is an apocalyptic number.

It is an amenable number.

289229228 is a deficient number, since it is larger than the sum of its proper divisors (246695644).

289229228 is a wasteful number, since it uses less digits than its factorization.

289229228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253392 (or 4253390 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 289229228 is about 17006.7406636310. The cubic root of 289229228 is about 661.3236582339.

The spelling of 289229228 in words is "two hundred eighty-nine million, two hundred twenty-nine thousand, two hundred twenty-eight".