4022278 has 16 divisors (see below), whose sum is σ = 6597360. Its totient is φ = 1827936.

The previous prime is 4022257. The next prime is 4022287. The reversal of 4022278 is 8722204.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588 + ... + 2896.

It is an arithmetic number, because the mean of its divisors is an integer number (412335).

Almost surely, 2^4022278 is an apocalyptic number.

4022278 is a deficient number, since it is larger than the sum of its proper divisors (2575082).

4022278 is a wasteful number, since it uses less digits than its factorization.

4022278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 4022278 is about 2005.5617666878. The cubic root of 4022278 is about 159.0342607763.

The spelling of 4022278 in words is "four million, twenty-two thousand, two hundred seventy-eight".