2280720 has 160 divisors (see below), whose sum is σ = 8249472. Its totient is φ = 516096.

The previous prime is 2280709. The next prime is 2280767. The reversal of 2280720 is 270822.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53019 + ... + 53061.

2^2280720 is an apocalyptic number.

2280720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2280720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4124736).

2280720 is an abundant number, since it is smaller than the sum of its proper divisors (5968752).

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

2280720 is a wasteful number, since it uses less digits than its factorization.

2280720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2280720 is about 1510.2052840591. The cubic root of 2280720 is about 131.6307402559.

The spelling of 2280720 in words is "two million, two hundred eighty thousand, seven hundred twenty".