289085026 has 8 divisors (see below), whose sum is σ = 438098220. Its totient is φ = 143052288.

The previous prime is 289084993. The next prime is 289085063. The reversal of 289085026 is 620580982.

It can be written as a sum of positive squares in 2 ways, for example, as 288966001 + 119025 = 16999^2 + 345^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 289085026.

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 3 ways as a sum of consecutive naturals, for example, 744871 + ... + 745258.

Almost surely, 2^289085026 is an apocalyptic number.

289085026 is a deficient number, since it is larger than the sum of its proper divisors (149013194).

289085026 is a wasteful number, since it uses less digits than its factorization.

289085026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490228.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 289085026 is about 17002.5005807969. The cubic root of 289085026 is about 661.2137338348.

The spelling of 289085026 in words is "two hundred eighty-nine million, eighty-five thousand, twenty-six".