2241815 has 4 divisors (see below), whose sum is σ = 2690184. Its totient is φ = 1793448.

The previous prime is 2241809. The next prime is 2241851. The reversal of 2241815 is 5181422.

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 2241815 - 2⁶ = 2241751 is a prime.

It is a Duffinian 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, 224177 + ... + 224186.

It is an arithmetic number, because the mean of its divisors is an integer number (672546).

2^2241815 is an apocalyptic number.

2241815 is a deficient number, since it is larger than the sum of its proper divisors (448369).

2241815 is an equidigital number, since it uses as much as digits as its factorization.

2241815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448368.

The product of its digits is 640, while the sum is 23.

The square root of 2241815 is about 1497.2691808756. The cubic root of 2241815 is about 130.8779820656.

The spelling of 2241815 in words is "two million, two hundred forty-one thousand, eight hundred fifteen".