2290505 has 12 divisors (see below), whose sum is σ = 3197700.
Its totient is φ = 1570464.
The previous prime is 2290499. The next prime is 2290511. The reversal of 2290505 is 5050922.
It is a happy number.
2290505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (2290499) and next prime (2290511).
It can be written as a sum of positive squares in 2 ways, for example, as 1449616 + 840889 = 1204^2 + 917^2
It is not a de Polignac number, because 2290505 - 26 = 2290441 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 4430 + ... + 4919.
It is an arithmetic number, because the mean of its divisors is an integer number (266475).
22290505 is an apocalyptic number.
It is an amenable number.
2290505 is a deficient number, since it is larger than the sum of its proper divisors (907195).
2290505 is an equidigital number, since it uses as much as digits as its factorization.
2290505 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9368 (or 9361 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 23.
The square root of 2290505 is about 1513.4414425408.
The cubic root of 2290505 is about 131.8187173257.
The spelling of 2290505 in words is "two million, two hundred ninety thousand, five hundred five".