1018986312 has 16 divisors (see below), whose sum is σ = 2547465840. Its totient is φ = 339662096.

The previous prime is 1018986301. The next prime is 1018986361. The reversal of 1018986312 is 2136898101.

It is a super-2 number, since 2×1018986312² = 2076666208086722688, which contains 22 as substring.

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, 21228858 + ... + 21228905.

It is an arithmetic number, because the mean of its divisors is an integer number (159216615).

Almost surely, 2^1018986312 is an apocalyptic number.

1018986312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1018986312 is an abundant number, since it is smaller than the sum of its proper divisors (1528479528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1018986312 is a wasteful number, since it uses less digits than its factorization.

1018986312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42457772 (or 42457768 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1018986312 is about 31921.5649992290. The cubic root of 1018986312 is about 1006.2891345350.

The spelling of 1018986312 in words is "one billion, eighteen million, nine hundred eighty-six thousand, three hundred twelve".