2281790290 has 32 divisors (see below), whose sum is σ = 4425286320. Its totient is φ = 842102784.

The previous prime is 2281790243. The next prime is 2281790293. The reversal of 2281790290 is 920971822.

It can be written as a sum of positive squares in 8 ways, for example, as 491908041 + 1789882249 = 22179^2 + 42307^2 .

It is not an unprimeable number, because it can be changed into a prime (2281790293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487642 + ... + 492298.

Almost surely, 2^2281790290 is an apocalyptic number.

2281790290 is a deficient number, since it is larger than the sum of its proper divisors (2143496030).

2281790290 is a wasteful number, since it uses less digits than its factorization.

2281790290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8446.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 2281790290 is about 47768.0886157276. The cubic root of 2281790290 is about 1316.5132747296.

The spelling of 2281790290 in words is "two billion, two hundred eighty-one million, seven hundred ninety thousand, two hundred ninety".