289690338 has 64 divisors (see below), whose sum is σ = 701809920. Its totient is φ = 77952000.

The previous prime is 289690337. The next prime is 289690343. The reversal of 289690338 is 833096982.

It is not an unprimeable number, because it can be changed into a prime (289690337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47038 + ... + 52838.

It is an arithmetic number, because the mean of its divisors is an integer number (10965780).

Almost surely, 2^289690338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289690338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350904960).

289690338 is an abundant number, since it is smaller than the sum of its proper divisors (412119582).

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

289690338 is a wasteful number, since it uses less digits than its factorization.

289690338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 289690338 is about 17020.2919481424. The cubic root of 289690338 is about 661.6749148520.

The spelling of 289690338 in words is "two hundred eighty-nine million, six hundred ninety thousand, three hundred thirty-eight".