1018358228 has 12 divisors (see below), whose sum is σ = 1782479412. Its totient is φ = 509078400.

The previous prime is 1018358227. The next prime is 1018358261. The reversal of 1018358228 is 8228538101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 709583044 + 308775184 = 26638^2 + 17572^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1018358191 and 1018358200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018358227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476 + ... + 45132.

It is an arithmetic number, because the mean of its divisors is an integer number (148539951).

Almost surely, 2^1018358228 is an apocalyptic number.

It is an amenable number.

1018358228 is a deficient number, since it is larger than the sum of its proper divisors (764121184).

1018358228 is a wasteful number, since it uses less digits than its factorization.

1018358228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50362 (or 50360 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 1018358228 is about 31911.7255566038. The cubic root of 1018358228 is about 1006.0823394748.

The spelling of 1018358228 in words is "one billion, eighteen million, three hundred fifty-eight thousand, two hundred twenty-eight".