2278890089 has 6 divisors (see below), whose sum is σ = 2650953834. Its totient is φ = 1953334320.

The previous prime is 2278890083. The next prime is 2278890113. The reversal of 2278890089 is 9800988722.

2278890089 is digitally balanced in base 2, 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 only one way, i.e., 1512043225 + 766846864 = 38885^2 + 27692^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2278890089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2278890089.

It is not an unprimeable number, because it can be changed into a prime (2278890083) 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, 23253932 + ... + 23254029.

It is an arithmetic number, because the mean of its divisors is an integer number (441825639).

Almost surely, 2^2278890089 is an apocalyptic number.

It is an amenable number.

2278890089 is a deficient number, since it is larger than the sum of its proper divisors (372063745).

2278890089 is an equidigital number, since it uses as much as digits as its factorization.

2278890089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46507975 (or 46507968 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 2278890089 is about 47737.7218664653. The cubic root of 2278890089 is about 1315.9552667004.

The spelling of 2278890089 in words is "two billion, two hundred seventy-eight million, eight hundred ninety thousand, eighty-nine".