2278885 has 8 divisors (see below), whose sum is σ = 3125376. Its totient is φ = 1562640.

The previous prime is 2278877. The next prime is 2278891. The reversal of 2278885 is 5888722.

2278885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2278885 - 2³ = 2278877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32521 + ... + 32590.

It is an arithmetic number, because the mean of its divisors is an integer number (390672).

2^2278885 is an apocalyptic number.

It is an amenable number.

2278885 is a deficient number, since it is larger than the sum of its proper divisors (846491).

2278885 is an equidigital number, since it uses as much as digits as its factorization.

2278885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65123.

The product of its digits is 71680, while the sum is 40.

The square root of 2278885 is about 1509.5976285090. The cubic root of 2278885 is about 131.5954287144.

The spelling of 2278885 in words is "two million, two hundred seventy-eight thousand, eight hundred eighty-five".