1318423660 has 12 divisors (see below), whose sum is σ = 2768689728. Its totient is φ = 527369456.

The previous prime is 1318423657. The next prime is 1318423681. The reversal of 1318423660 is 663248131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32960572 + ... + 32960611.

It is an arithmetic number, because the mean of its divisors is an integer number (230724144).

Almost surely, 2^1318423660 is an apocalyptic number.

1318423660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1318423660 is an abundant number, since it is smaller than the sum of its proper divisors (1450266068).

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

1318423660 is a wasteful number, since it uses less digits than its factorization.

1318423660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65921192 (or 65921190 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1318423660 is about 36310.1041034035. The cubic root of 1318423660 is about 1096.5244739264.

The spelling of 1318423660 in words is "one billion, three hundred eighteen million, four hundred twenty-three thousand, six hundred sixty".