1318851856 has 45 divisors (see below), whose sum is σ = 2974756869. Its totient is φ = 564786432.

The previous prime is 1318851761. The next prime is 1318851881. The reversal of 1318851856 is 6581588131.

The square root of 1318851856 is 36316.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1314787600 + 4064256 = 36260^2 + 2016^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1016200 + ... + 1017496.

Almost surely, 2^1318851856 is an apocalyptic number.

1318851856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1318851856 is the 36316-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1318851856

1318851856 is an abundant number, since it is smaller than the sum of its proper divisors (1655905013).

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

1318851856 is an frugal number, since it uses more digits than its factorization.

1318851856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616 (or 1306 counting only the distinct ones).

The product of its digits is 230400, while the sum is 46.

The cubic root of 1318851856 is about 1096.6431703632.

Multiplying 1318851856 by its product of digits (230400), we get a square (303863467622400 = 17431680²).

The spelling of 1318851856 in words is "one billion, three hundred eighteen million, eight hundred fifty-one thousand, eight hundred fifty-six".