2542278 has 8 divisors (see below), whose sum is σ = 5084568. Its totient is φ = 847424.

The previous prime is 2542237. The next prime is 2542327. The reversal of 2542278 is 8722452.

2542278 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.

2542278 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, 211851 + ... + 211862.

It is an arithmetic number, because the mean of its divisors is an integer number (635571).

2^2542278 is an apocalyptic number.

2542278 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.

2542278 is a wasteful number, since it uses less digits than its factorization.

2542278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423718.

The product of its digits is 8960, while the sum is 30.

The square root of 2542278 is about 1594.4522570463. The cubic root of 2542278 is about 136.4816758131.

The spelling of 2542278 in words is "two million, five hundred forty-two thousand, two hundred seventy-eight".