289225266 has 16 divisors (see below), whose sum is σ = 631037088. Its totient is φ = 87644000.

The previous prime is 289225247. The next prime is 289225271. The reversal of 289225266 is 662522982.

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, 2191035 + ... + 2191166.

It is an arithmetic number, because the mean of its divisors is an integer number (39439818).

Almost surely, 2^289225266 is an apocalyptic number.

289225266 is an abundant number, since it is smaller than the sum of its proper divisors (341811822).

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

289225266 is a wasteful number, since it uses less digits than its factorization.

289225266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382217.

The product of its digits is 207360, while the sum is 42.

The square root of 289225266 is about 17006.6241800070. The cubic root of 289225266 is about 661.3206385111.

The spelling of 289225266 in words is "two hundred eighty-nine million, two hundred twenty-five thousand, two hundred sixty-six".