4122778 has 16 divisors (see below), whose sum is σ = 6849504. Its totient is φ = 1845360.

The previous prime is 4122751. The next prime is 4122779. The reversal of 4122778 is 8772214.

It is not an unprimeable number, because it can be changed into a prime (4122779) by changing a digit.

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, 76 + ... + 2872.

It is an arithmetic number, because the mean of its divisors is an integer number (428094).

Almost surely, 2^4122778 is an apocalyptic number.

4122778 is a deficient number, since it is larger than the sum of its proper divisors (2726726).

4122778 is a wasteful number, since it uses less digits than its factorization.

4122778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877.

The product of its digits is 6272, while the sum is 31.

The square root of 4122778 is about 2030.4625088881. The cubic root of 4122778 is about 160.3479147972.

It can be divided in two parts, 4122 and 778, that added together give a square (4900 = 70²).

The spelling of 4122778 in words is "four million, one hundred twenty-two thousand, seven hundred seventy-eight".