1318032040 has 64 divisors (see below), whose sum is σ = 3241445760. Its totient is φ = 479381760.

The previous prime is 1318032013. The next prime is 1318032059. The reversal of 1318032040 is 402308131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15925 + ... + 53755.

It is an arithmetic number, because the mean of its divisors is an integer number (50647590).

Almost surely, 2^1318032040 is an apocalyptic number.

1318032040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1318032040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620722880).

1318032040 is an abundant number, since it is smaller than the sum of its proper divisors (1923413720).

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

1318032040 is a wasteful number, since it uses less digits than its factorization.

1318032040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37922 (or 37918 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1318032040 is about 36304.7109890714. The cubic root of 1318032040 is about 1096.4158938970.

The spelling of 1318032040 in words is "one billion, three hundred eighteen million, thirty-two thousand, forty".