289478214 has 24 divisors (see below), whose sum is σ = 628963920. Its totient is φ = 96221808.

The previous prime is 289478201. The next prime is 289478237. The reversal of 289478214 is 412874982.

It is a self number, because there is not a number n which added to its sum of digits gives 289478214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15937 + ... + 28860.

It is an arithmetic number, because the mean of its divisors is an integer number (26206830).

Almost surely, 2^289478214 is an apocalyptic number.

289478214 is an abundant number, since it is smaller than the sum of its proper divisors (339485706).

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

289478214 is a wasteful number, since it uses less digits than its factorization.

289478214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45164 (or 45161 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 289478214 is about 17014.0593039991. The cubic root of 289478214 is about 661.5133729298.

The spelling of 289478214 in words is "two hundred eighty-nine million, four hundred seventy-eight thousand, two hundred fourteen".