2273815 has 4 divisors (see below), whose sum is σ = 2728584. Its totient is φ = 1819048.

The previous prime is 2273807. The next prime is 2273827. The reversal of 2273815 is 5183722.

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 2273815 - 2³ = 2273807 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, 227377 + ... + 227386.

It is an arithmetic number, because the mean of its divisors is an integer number (682146).

2^2273815 is an apocalyptic number.

2273815 is a deficient number, since it is larger than the sum of its proper divisors (454769).

2273815 is an equidigital number, since it uses as much as digits as its factorization.

2273815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454768.

The product of its digits is 3360, while the sum is 28.

The square root of 2273815 is about 1507.9174380582. The cubic root of 2273815 is about 131.4977663025.

It can be divided in two parts, 22 and 73815, that added together give a palindrome (73837).

The spelling of 2273815 in words is "two million, two hundred seventy-three thousand, eight hundred fifteen".