289143874 has 8 divisors (see below), whose sum is σ = 434373948. Its totient is φ = 144352560.

The previous prime is 289143839. The next prime is 289143923. The reversal of 289143874 is 478341982.

It can be written as a sum of positive squares in 2 ways, for example, as 287472025 + 1671849 = 16955^2 + 1293^2 .

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, 108037 + ... + 110680.

Almost surely, 2^289143874 is an apocalyptic number.

289143874 is a deficient number, since it is larger than the sum of its proper divisors (145230074).

289143874 is a wasteful number, since it uses less digits than its factorization.

289143874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219380.

The product of its digits is 387072, while the sum is 46.

The square root of 289143874 is about 17004.2310617093. The cubic root of 289143874 is about 661.2585977587.

The spelling of 289143874 in words is "two hundred eighty-nine million, one hundred forty-three thousand, eight hundred seventy-four".