1018330140 has 24 divisors (see below), whose sum is σ = 2851324560. Its totient is φ = 271554688.

The previous prime is 1018330121. The next prime is 1018330151. The reversal of 1018330140 is 410338101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8486025 + ... + 8486144.

It is an arithmetic number, because the mean of its divisors is an integer number (118805190).

Almost surely, 2^1018330140 is an apocalyptic number.

1018330140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1018330140 is an abundant number, since it is smaller than the sum of its proper divisors (1832994420).

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

1018330140 is a wasteful number, since it uses less digits than its factorization.

1018330140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16972181 (or 16972179 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1018330140 is about 31911.2854645500. The cubic root of 1018330140 is about 1006.0730895861.

Adding to 1018330140 its reverse (410338101), we get a palindrome (1428668241).

The spelling of 1018330140 in words is "one billion, eighteen million, three hundred thirty thousand, one hundred forty".