2022278678 has 16 divisors (see below), whose sum is σ = 3484365984. Its totient is φ = 862290240.

The previous prime is 2022278659. The next prime is 2022278717. The reversal of 2022278678 is 8768722202.

It is a super-2 number, since 2×2022278678² = 8179222102986855368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363863 + ... + 369378.

It is an arithmetic number, because the mean of its divisors is an integer number (217772874).

Almost surely, 2^2022278678 is an apocalyptic number.

2022278678 is a deficient number, since it is larger than the sum of its proper divisors (1462087306).

2022278678 is a wasteful number, since it uses less digits than its factorization.

2022278678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733447.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 2022278678 is about 44969.7529234929. The cubic root of 2022278678 is about 1264.5820150381.

The spelling of 2022278678 in words is "two billion, twenty-two million, two hundred seventy-eight thousand, six hundred seventy-eight".