2280731 has 4 divisors (see below), whose sum is σ = 2292864. Its totient is φ = 2268600.

The previous prime is 2280709. The next prime is 2280767. The reversal of 2280731 is 1370822.

2280731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2280731 - 2⁶ = 2280667 is a prime.

It is a super-2 number, since 2×2280731² = 10403467788722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2280697 and 2280706.

It is not an unprimeable number, because it can be changed into a prime (2280331) by changing a digit.

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, 5780 + ... + 6161.

It is an arithmetic number, because the mean of its divisors is an integer number (573216).

2^2280731 is an apocalyptic number.

2280731 is a deficient number, since it is larger than the sum of its proper divisors (12133).

2280731 is a wasteful number, since it uses less digits than its factorization.

2280731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12132.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2280731 is about 1510.2089259437. The cubic root of 2280731 is about 131.6309518756.

Subtracting from 2280731 its reverse (1370822), we obtain a palindrome (909909).

The spelling of 2280731 in words is "two million, two hundred eighty thousand, seven hundred thirty-one".