618572228 has 12 divisors (see below), whose sum is σ = 1082675580. Its totient is φ = 309236352.

The previous prime is 618572221. The next prime is 618572231. The reversal of 618572228 is 822275816.

618572228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 80425024 + 538147204 = 8968^2 + 23198^2 .

It is not an unprimeable number, because it can be changed into a prime (618572221) 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, 41888 + ... + 54696.

It is an arithmetic number, because the mean of its divisors is an integer number (90222965).

Almost surely, 2^618572228 is an apocalyptic number.

It is an amenable number.

618572228 is a deficient number, since it is larger than the sum of its proper divisors (464103352).

618572228 is a wasteful number, since it uses less digits than its factorization.

618572228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24886 (or 24884 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 618572228 is about 24871.1123193154. The cubic root of 618572228 is about 852.0468447577.

The spelling of 618572228 in words is "six hundred eighteen million, five hundred seventy-two thousand, two hundred twenty-eight".