4223778 has 16 divisors (see below), whose sum is σ = 9097536. Its totient is φ = 1299600.

The previous prime is 4223777. The next prime is 4223783. The reversal of 4223778 is 8773224.

It is not an unprimeable number, because it can be changed into a prime (4223773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26998 + ... + 27153.

It is an arithmetic number, because the mean of its divisors is an integer number (568596).

Almost surely, 2^4223778 is an apocalyptic number.

4223778 is an abundant number, since it is smaller than the sum of its proper divisors (4873758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4223778 is a wasteful number, since it uses less digits than its factorization.

4223778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54169.

The product of its digits is 18816, while the sum is 33.

The square root of 4223778 is about 2055.1832035125. The cubic root of 4223778 is about 161.6467688457.

The spelling of 4223778 in words is "four million, two hundred twenty-three thousand, seven hundred seventy-eight".