1500318340 has 48 divisors (see below), whose sum is σ = 3344468400. Its totient is φ = 563392512.

The previous prime is 1500318319. The next prime is 1500318343. The reversal of 1500318340 is 438130051.

It can be written as a sum of positive squares in 8 ways, for example, as 128504896 + 1371813444 = 11336^2 + 37038^2 .

It is not an unprimeable number, because it can be changed into a prime (1500318343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133666 + ... + 144454.

It is an arithmetic number, because the mean of its divisors is an integer number (69676425).

Almost surely, 2^1500318340 is an apocalyptic number.

1500318340 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 1500318340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672234200).

1500318340 is an abundant number, since it is smaller than the sum of its proper divisors (1844150060).

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

1500318340 is a wasteful number, since it uses less digits than its factorization.

1500318340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11224 (or 11222 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1500318340 is about 38733.9429957757. The cubic root of 1500318340 is about 1144.7952164547.

Adding to 1500318340 its reverse (438130051), we get a palindrome (1938448391).

The spelling of 1500318340 in words is "one billion, five hundred million, three hundred eighteen thousand, three hundred forty".