289904474 has 12 divisors (see below), whose sum is σ = 450371454. Its totient is φ = 139953072.

The previous prime is 289904473. The next prime is 289904477. The reversal of 289904474 is 474409982.

289904474 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 289170025 + 734449 = 17005^2 + 857^2 .

It is not an unprimeable number, because it can be changed into a prime (289904471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84497 + ... + 87860.

Almost surely, 2^289904474 is an apocalyptic number.

289904474 is a deficient number, since it is larger than the sum of its proper divisors (160466980).

289904474 is a wasteful number, since it uses less digits than its factorization.

289904474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172417 (or 172388 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 289904474 is about 17026.5813949836. The cubic root of 289904474 is about 661.8379090378.

The spelling of 289904474 in words is "two hundred eighty-nine million, nine hundred four thousand, four hundred seventy-four".