2272280 has 16 divisors (see below), whose sum is σ = 5112720. Its totient is φ = 908896.

The previous prime is 2272273. The next prime is 2272297. The reversal of 2272280 is 822722.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28364 + ... + 28443.

It is an arithmetic number, because the mean of its divisors is an integer number (319545).

2^2272280 is an apocalyptic number.

2272280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2272280 is an abundant number, since it is smaller than the sum of its proper divisors (2840440).

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

2272280 is a wasteful number, since it uses less digits than its factorization.

2272280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56818 (or 56814 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2272280 is about 1507.4083720081. The cubic root of 2272280 is about 131.4681692729.

It can be divided in two parts, 2272 and 280, that added together give a palindrome (2552).

The spelling of 2272280 in words is "two million, two hundred seventy-two thousand, two hundred eighty".