289669212 has 144 divisors (see below), whose sum is σ = 891072000. Its totient is φ = 77500800.

The previous prime is 289669201. The next prime is 289669229. The reversal of 289669212 is 212966982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 483289 + ... + 483887.

It is an arithmetic number, because the mean of its divisors is an integer number (6188000).

Almost surely, 2^289669212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289669212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445536000).

289669212 is an abundant number, since it is smaller than the sum of its proper divisors (601402788).

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

289669212 is a wasteful number, since it uses less digits than its factorization.

289669212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 731 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 289669212 is about 17019.6713246760. The cubic root of 289669212 is about 661.6588299937.

The spelling of 289669212 in words is "two hundred eighty-nine million, six hundred sixty-nine thousand, two hundred twelve".