2290278 has 8 divisors (see below), whose sum is σ = 4580568. Its totient is φ = 763424.

The previous prime is 2290259. The next prime is 2290283. The reversal of 2290278 is 8720922.

2290278 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.

2290278 is an admirable number.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 190851 + ... + 190862.

It is an arithmetic number, because the mean of its divisors is an integer number (572571).

2^2290278 is an apocalyptic number.

2290278 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.

2290278 is a wasteful number, since it uses less digits than its factorization.

2290278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381718.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2290278 is about 1513.3664460401. The cubic root of 2290278 is about 131.8143625600.

The spelling of 2290278 in words is "two million, two hundred ninety thousand, two hundred seventy-eight".