289021232 has 40 divisors (see below), whose sum is σ = 576153600. Its totient is φ = 140374080.

The previous prime is 289021223. The next prime is 289021241. The reversal of 289021232 is 232120982.

289021232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (289021223) and next prime (289021241).

It is a junction number, because it is equal to n+sod(n) for n = 289021195 and 289021204.

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, 135857 + ... + 137967.

It is an arithmetic number, because the mean of its divisors is an integer number (14403840).

Almost surely, 2^289021232 is an apocalyptic number.

It is an amenable number.

289021232 is a deficient number, since it is larger than the sum of its proper divisors (287132368).

289021232 is a wasteful number, since it uses less digits than its factorization.

289021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361 (or 2355 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 289021232 is about 17000.6244591191. The cubic root of 289021232 is about 661.1650923530.

The spelling of 289021232 in words is "two hundred eighty-nine million, twenty-one thousand, two hundred thirty-two".