1318848520 has 160 divisors (see below), whose sum is σ = 3565581120. Its totient is φ = 434586240.

The previous prime is 1318848493. The next prime is 1318848521. The reversal of 1318848520 is 258488131.

It is a super-2 number, since 2×1318848520² = 3478722837412380800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318848521) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 57341229 + ... + 57341251.

It is an arithmetic number, because the mean of its divisors is an integer number (22284882).

Almost surely, 2^1318848520 is an apocalyptic number.

1318848520 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 1318848520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782790560).

1318848520 is an abundant number, since it is smaller than the sum of its proper divisors (2246732600).

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

1318848520 is an equidigital number, since it uses as much as digits as its factorization.

1318848520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 1318848520 is about 36315.9540698024. The cubic root of 1318848520 is about 1096.6422457194.

The spelling of 1318848520 in words is "one billion, three hundred eighteen million, eight hundred forty-eight thousand, five hundred twenty".