2281288290 has 64 divisors (see below), whose sum is σ = 5541509376. Its totient is φ = 600993792.

The previous prime is 2281288271. The next prime is 2281288297. The reversal of 2281288290 is 928821822.

It is a super-2 number, since 2×2281288290² = 10408552524182248200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2281288297) 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 31 ways as a sum of consecutive naturals, for example, 2079022 + ... + 2080118.

It is an arithmetic number, because the mean of its divisors is an integer number (86586084).

Almost surely, 2^2281288290 is an apocalyptic number.

2281288290 is an abundant number, since it is smaller than the sum of its proper divisors (3260221086).

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

2281288290 is a wasteful number, since it uses less digits than its factorization.

2281288290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883.

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 2281288290 is about 47762.8337727150. The cubic root of 2281288290 is about 1316.4167221617.

The spelling of 2281288290 in words is "two billion, two hundred eighty-one million, two hundred eighty-eight thousand, two hundred ninety".