289442002 has 4 divisors (see below), whose sum is σ = 434163006. Its totient is φ = 144721000.

The previous prime is 289441969. The next prime is 289442039. The reversal of 289442002 is 200244982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 281199361 + 8242641 = 16769^2 + 2871^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72360499 + ... + 72360502.

Almost surely, 2^289442002 is an apocalyptic number.

289442002 is a deficient number, since it is larger than the sum of its proper divisors (144721004).

289442002 is a wasteful number, since it uses less digits than its factorization.

289442002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144721003.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 289442002 is about 17012.9950919878. The cubic root of 289442002 is about 661.4857879855.

Adding to 289442002 its reverse (200244982), we get a palindrome (489686984).

The spelling of 289442002 in words is "two hundred eighty-nine million, four hundred forty-two thousand, two".