289909994 has 8 divisors (see below), whose sum is σ = 474398208. Its totient is φ = 131777260.

The previous prime is 289909987. The next prime is 289910021. The reversal of 289909994 is 499909982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6588842 + ... + 6588885.

It is an arithmetic number, because the mean of its divisors is an integer number (59299776).

Almost surely, 2^289909994 is an apocalyptic number.

289909994 is a deficient number, since it is larger than the sum of its proper divisors (184488214).

289909994 is a wasteful number, since it uses less digits than its factorization.

289909994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13177740.

The product of its (nonzero) digits is 3779136, while the sum is 59.

The square root of 289909994 is about 17026.7434936925. The cubic root of 289909994 is about 661.8421096423.

The spelling of 289909994 in words is "two hundred eighty-nine million, nine hundred nine thousand, nine hundred ninety-four".