1018040228 has 12 divisors (see below), whose sum is σ = 1781819340. Its totient is φ = 508948992.

The previous prime is 1018040213. The next prime is 1018040251. The reversal of 1018040228 is 8220408101.

It can be written as a sum of positive squares in 2 ways, for example, as 282979684 + 735060544 = 16822^2 + 27112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1018040197 and 1018040206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26900 + ... + 52532.

It is an arithmetic number, because the mean of its divisors is an integer number (148484945).

Almost surely, 2^1018040228 is an apocalyptic number.

It is an amenable number.

1018040228 is a deficient number, since it is larger than the sum of its proper divisors (763779112).

1018040228 is a wasteful number, since it uses less digits than its factorization.

1018040228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35566 (or 35564 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 1018040228 is about 31906.7426729837. The cubic root of 1018040228 is about 1005.9776063587.

Adding to 1018040228 its reverse (8220408101), we get a palindrome (9238448329).

The spelling of 1018040228 in words is "one billion, eighteen million, forty thousand, two hundred twenty-eight".