2278086 has 8 divisors (see below), whose sum is σ = 4556184. Its totient is φ = 759360.

The previous prime is 2278079. The next prime is 2278091. The reversal of 2278086 is 6808722.

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

2278086 is an admirable number.

It is a Curzon 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, 189835 + ... + 189846.

It is an arithmetic number, because the mean of its divisors is an integer number (569523).

2^2278086 is an apocalyptic number.

2278086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2278086 is a wasteful number, since it uses less digits than its factorization.

2278086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379686.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 2278086 is about 1509.3329652532. The cubic root of 2278086 is about 131.5800473564.

The spelling of 2278086 in words is "two million, two hundred seventy-eight thousand, eighty-six".