2881290 has 16 divisors (see below), whose sum is σ = 6915168. Its totient is φ = 768336.

The previous prime is 2881289. The next prime is 2881303. The reversal of 2881290 is 921882.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 96043 = 2881290 / (2 + 8 + 8 + 1 + 2 + 9 + 0).

It is a zygodrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47992 + ... + 48051.

It is an arithmetic number, because the mean of its divisors is an integer number (432198).

2^2881290 is an apocalyptic number.

2881290 is an abundant number, since it is smaller than the sum of its proper divisors (4033878).

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

2881290 is a wasteful number, since it uses less digits than its factorization.

2881290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96053.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2881290 is about 1697.4363021922. The cubic root of 2881290 is about 142.2969715660.

It can be divided in two parts, 28 and 81290, that added together give a palindrome (81318).

The spelling of 2881290 in words is "two million, eight hundred eighty-one thousand, two hundred ninety".