4778122 has 8 divisors (see below), whose sum is σ = 7588836. Its totient is φ = 2248512.

The previous prime is 4778119. The next prime is 4778129. The reversal of 4778122 is 2218774.

It can be written as a sum of positive squares in 2 ways, for example, as 4626801 + 151321 = 2151^2 + 389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4778129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70233 + ... + 70300.

Almost surely, 2^4778122 is an apocalyptic number.

4778122 is a deficient number, since it is larger than the sum of its proper divisors (2810714).

4778122 is a wasteful number, since it uses less digits than its factorization.

4778122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140552.

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

The square root of 4778122 is about 2185.8915801110. The cubic root of 4778122 is about 168.4298563072.

It can be divided in two parts, 4778 and 122, that added together give a square (4900 = 70²).

The spelling of 4778122 in words is "four million, seven hundred seventy-eight thousand, one hundred twenty-two".