2276819 has 4 divisors (see below), whose sum is σ = 2355360. Its totient is φ = 2198280.

The previous prime is 2276809. The next prime is 2276849. The reversal of 2276819 is 9186722.

It is a happy number.

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 2276819 - 2²⁰ = 1228243 is a prime.

It is a super-2 number, since 2×2276819² = 10367809517522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2276809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39227 + ... + 39284.

It is an arithmetic number, because the mean of its divisors is an integer number (588840).

2^2276819 is an apocalyptic number.

2276819 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2276819 is a deficient number, since it is larger than the sum of its proper divisors (78541).

2276819 is an equidigital number, since it uses as much as digits as its factorization.

2276819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78540.

The product of its digits is 12096, while the sum is 35.

The square root of 2276819 is about 1508.9131850441. The cubic root of 2276819 is about 131.5556492672. Note that the first 3 decimals are identical.

Subtracting 2276819 from its reverse (9186722), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2276819 in words is "two million, two hundred seventy-six thousand, eight hundred nineteen".