2280749 has 8 divisors (see below), whose sum is σ = 2426112. Its totient is φ = 2139280.

The previous prime is 2280709. The next prime is 2280767. The reversal of 2280749 is 9470822.

2280749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2280749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2280709) 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 7 ways as a sum of consecutive naturals, for example, 284 + ... + 2154.

It is an arithmetic number, because the mean of its divisors is an integer number (303264).

2^2280749 is an apocalyptic number.

It is an amenable number.

2280749 is a deficient number, since it is larger than the sum of its proper divisors (145363).

2280749 is a wasteful number, since it uses less digits than its factorization.

2280749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2280749 is about 1510.2148853723. The cubic root of 2280749 is about 131.6312981609.

The spelling of 2280749 in words is "two million, two hundred eighty thousand, seven hundred forty-nine".