289807802244 has 243 divisors, whose sum is σ = 791986443703. Its totient is φ = 89346881184.

The previous prime is 289807802203. The next prime is 289807802257. The reversal of 289807802244 is 442208708982.

The square root of 289807802244 is 538338.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×289807802244² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3491660227 + ... + 3491660309.

Almost surely, 2^289807802244 is an apocalyptic number.

289807802244 is the 538338-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289807802244

289807802244 is an abundant number, since it is smaller than the sum of its proper divisors (502178641459).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289807802244 is a wasteful number, since it uses less digits than its factorization.

289807802244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 289807802244 in words is "two hundred eighty-nine billion, eight hundred seven million, eight hundred two thousand, two hundred forty-four".