289343952 has 30 divisors (see below), whose sum is σ = 809761602. Its totient is φ = 96447936.

The previous prime is 289343941. The next prime is 289343953. The reversal of 289343952 is 259343982.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 289136016 + 207936 = 17004^2 + 456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 289343898 and 289343907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289343953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1004523 + ... + 1004810.

Almost surely, 2^289343952 is an apocalyptic number.

It is an amenable number.

289343952 is an abundant number, since it is smaller than the sum of its proper divisors (520417650).

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

289343952 is a wasteful number, since it uses less digits than its factorization.

289343952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009347 (or 2009338 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 289343952 is about 17010.1132271364. The cubic root of 289343952 is about 661.4110856201.

The spelling of 289343952 in words is "two hundred eighty-nine million, three hundred forty-three thousand, nine hundred fifty-two".