2890281 has 4 divisors (see below), whose sum is σ = 3853712. Its totient is φ = 1926852.

The previous prime is 2890271. The next prime is 2890301. The reversal of 2890281 is 1820982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2890281 - 2⁹ = 2889769 is a prime.

It is a super-2 number, since 2×2890281² = 16707448517922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2890211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481711 + ... + 481716.

It is an arithmetic number, because the mean of its divisors is an integer number (963428).

2^2890281 is an apocalyptic number.

It is an amenable number.

2890281 is a deficient number, since it is larger than the sum of its proper divisors (963431).

2890281 is an equidigital number, since it uses as much as digits as its factorization.

2890281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963430.

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

The square root of 2890281 is about 1700.0826450499. The cubic root of 2890281 is about 142.4448293661. Note that the first 3 decimals are identical.

It can be divided in two parts, 28 and 90281, that added together give a palindrome (90309).

The spelling of 2890281 in words is "two million, eight hundred ninety thousand, two hundred eighty-one".