2275220 has 12 divisors (see below), whose sum is σ = 4778004. Its totient is φ = 910080.

The previous prime is 2275219. The next prime is 2275243. The reversal of 2275220 is 225722.

2275220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 868624 + 1406596 = 932^2 + 1186^2 .

It is a super-3 number, since 3×2275220³ = 35333889353521944000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 113761 = 2275220 / (2 + 2 + 7 + 5 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2275192 and 2275201.

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 3 ways as a sum of consecutive naturals, for example, 56861 + ... + 56900.

It is an arithmetic number, because the mean of its divisors is an integer number (398167).

2^2275220 is an apocalyptic number.

2275220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2275220 is an abundant number, since it is smaller than the sum of its proper divisors (2502784).

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

2275220 is a wasteful number, since it uses less digits than its factorization.

2275220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113770 (or 113768 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2275220 is about 1508.3832404266. The cubic root of 2275220 is about 131.5248450697.

It can be divided in two parts, 2275 and 220, that multiplied together give a triangular number (500500 = T₁₀₀₀).

The spelling of 2275220 in words is "two million, two hundred seventy-five thousand, two hundred twenty".