2628281290 has 16 divisors (see below), whose sum is σ = 4737169512. Its totient is φ = 1049920704.

The previous prime is 2628281263. The next prime is 2628281291. The reversal of 2628281290 is 921828262.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2260907401 + 367373889 = 47549^2 + 19167^2 .

It is not an unprimeable number, because it can be changed into a prime (2628281291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166029 + ... + 181168.

Almost surely, 2^2628281290 is an apocalyptic number.

2628281290 is a deficient number, since it is larger than the sum of its proper divisors (2108888222).

2628281290 is a wasteful number, since it uses less digits than its factorization.

2628281290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347961.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 2628281290 is about 51266.7659405194. The cubic root of 2628281290 is about 1380.0366317378.

The spelling of 2628281290 in words is "two billion, six hundred twenty-eight million, two hundred eighty-one thousand, two hundred ninety".