1318798416 has 40 divisors (see below), whose sum is σ = 3668966560. Its totient is φ = 405783936.

The previous prime is 1318798381. The next prime is 1318798421. The reversal of 1318798416 is 6148978131.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1056106 + ... + 1057353.

It is an arithmetic number, because the mean of its divisors is an integer number (91724164).

Almost surely, 2^1318798416 is an apocalyptic number.

1318798416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1318798416 is an abundant number, since it is smaller than the sum of its proper divisors (2350168144).

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

1318798416 is a wasteful number, since it uses less digits than its factorization.

1318798416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113483 (or 2113477 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 1318798416 is about 36315.2642286959. The cubic root of 1318798416 is about 1096.6283581354.

The spelling of 1318798416 in words is "one billion, three hundred eighteen million, seven hundred ninety-eight thousand, four hundred sixteen".