2278895 has 8 divisors (see below), whose sum is σ = 2746656. Its totient is φ = 1815136.

The previous prime is 2278891. The next prime is 2278943. The reversal of 2278895 is 5988722.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2278895 - 2² = 2278891 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁸ + 7⁴ + 8² + 8² + 9⁵ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278891) 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 7 ways as a sum of consecutive naturals, for example, 449 + ... + 2181.

It is an arithmetic number, because the mean of its divisors is an integer number (343332).

2^2278895 is an apocalyptic number.

2278895 is a deficient number, since it is larger than the sum of its proper divisors (467761).

2278895 is a wasteful number, since it uses less digits than its factorization.

2278895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001.

The product of its digits is 80640, while the sum is 41.

The square root of 2278895 is about 1509.6009406462. The cubic root of 2278895 is about 131.5956211993.

The spelling of 2278895 in words is "two million, two hundred seventy-eight thousand, eight hundred ninety-five".