2890644243 has 8 divisors (see below), whose sum is σ = 3936196608. Its totient is φ = 1886094024.

The previous prime is 2890644217. The next prime is 2890644247. The reversal of 2890644243 is 3424460982.

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

It is not a de Polignac number, because 2890644243 - 2⁶ = 2890644179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2890644195 and 2890644204.

It is not an unprimeable number, because it can be changed into a prime (2890644247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10250371 + ... + 10250652.

It is an arithmetic number, because the mean of its divisors is an integer number (492024576).

Almost surely, 2^2890644243 is an apocalyptic number.

2890644243 is a deficient number, since it is larger than the sum of its proper divisors (1045552365).

2890644243 is a wasteful number, since it uses less digits than its factorization.

2890644243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20501073.

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 2890644243 is about 53764.7118749836. The cubic root of 2890644243 is about 1424.5079648134.

The spelling of 2890644243 in words is "two billion, eight hundred ninety million, six hundred forty-four thousand, two hundred forty-three".