289689422 has 16 divisors (see below), whose sum is σ = 479751552. Its totient is φ = 130089720.

The previous prime is 289689419. The next prime is 289689431. The reversal of 289689422 is 224986982.

It is a super-2 number, since 2×289689422² = 167839922437388168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 77498 + ... + 81149.

It is an arithmetic number, because the mean of its divisors is an integer number (29984472).

Almost surely, 2^289689422 is an apocalyptic number.

289689422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

289689422 is a deficient number, since it is larger than the sum of its proper divisors (190062130).

289689422 is a wasteful number, since it uses less digits than its factorization.

289689422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158743.

The product of its digits is 995328, while the sum is 50.

The square root of 289689422 is about 17020.2650390645. The cubic root of 289689422 is about 661.6742174465.

The spelling of 289689422 in words is "two hundred eighty-nine million, six hundred eighty-nine thousand, four hundred twenty-two".