1018291028 has 12 divisors (see below), whose sum is σ = 1788093300. Its totient is φ = 507407232.

The previous prime is 1018291019. The next prime is 1018291031. The reversal of 1018291028 is 8201928101.

It can be written as a sum of positive squares in 2 ways, for example, as 1000330384 + 17960644 = 31628^2 + 4238^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1018290985 and 1018291003.

It is a congruent number.

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, 433253 + ... + 435596.

It is an arithmetic number, because the mean of its divisors is an integer number (149007775).

Almost surely, 2^1018291028 is an apocalyptic number.

It is an amenable number.

1018291028 is a deficient number, since it is larger than the sum of its proper divisors (769802272).

1018291028 is a wasteful number, since it uses less digits than its factorization.

1018291028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869146 (or 869144 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 1018291028 is about 31910.6726347158. The cubic root of 1018291028 is about 1006.0602090107.

The spelling of 1018291028 in words is "one billion, eighteen million, two hundred ninety-one thousand, twenty-eight".