4778243228 has 24 divisors (see below), whose sum is σ = 9126069120. Its totient is φ = 2170983920.

The previous prime is 4778243191. The next prime is 4778243231. The reversal of 4778243228 is 8223428774.

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, 84203 + ... + 129021.

It is an arithmetic number, because the mean of its divisors is an integer number (380252880).

Almost surely, 2^4778243228 is an apocalyptic number.

It is an amenable number.

4778243228 is a deficient number, since it is larger than the sum of its proper divisors (4347825892).

4778243228 is a wasteful number, since it uses less digits than its factorization.

4778243228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47257 (or 47255 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 47.

The square root of 4778243228 is about 69124.8379961935. The cubic root of 4778243228 is about 1684.3128073310.

The spelling of 4778243228 in words is "four billion, seven hundred seventy-eight million, two hundred forty-three thousand, two hundred twenty-eight".