2280409 has 4 divisors (see below), whose sum is σ = 2319120. Its totient is φ = 2241700.

The previous prime is 2280407. The next prime is 2280413. The reversal of 2280409 is 9040822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2280409 - 2¹ = 2280407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2280401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19267 + ... + 19384.

It is an arithmetic number, because the mean of its divisors is an integer number (579780).

2^2280409 is an apocalyptic number.

It is an amenable number.

2280409 is a deficient number, since it is larger than the sum of its proper divisors (38711).

2280409 is an equidigital number, since it uses as much as digits as its factorization.

2280409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38710.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2280409 is about 1510.1023144145. The cubic root of 2280409 is about 131.6247569084.

The spelling of 2280409 in words is "two million, two hundred eighty thousand, four hundred nine".