2275290 has 60 divisors (see below), whose sum is σ = 6235614. Its totient is φ = 595296.

The previous prime is 2275289. The next prime is 2275303. The reversal of 2275290 is 925722.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2152089 + 123201 = 1467^2 + 351^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

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 29 ways as a sum of consecutive naturals, for example, 42904 + ... + 42956.

2^2275290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2275290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3117807).

2275290 is an abundant number, since it is smaller than the sum of its proper divisors (3960324).

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

2275290 is an equidigital number, since it uses as much as digits as its factorization.

2275290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2275290 is about 1508.4064439003. The cubic root of 2275290 is about 131.5261938982.

The spelling of 2275290 in words is "two million, two hundred seventy-five thousand, two hundred ninety".