1318542828 has 12 divisors (see below), whose sum is σ = 3076599960. Its totient is φ = 439514272.

The previous prime is 1318542811. The next prime is 1318542833. The reversal of 1318542828 is 8282458131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1318542828.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54939273 + ... + 54939296.

It is an arithmetic number, because the mean of its divisors is an integer number (256383330).

Almost surely, 2^1318542828 is an apocalyptic number.

It is an amenable number.

1318542828 is an abundant number, since it is smaller than the sum of its proper divisors (1758057132).

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

1318542828 is a wasteful number, since it uses less digits than its factorization.

1318542828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109878576 (or 109878574 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 1318542828 is about 36311.7450420659. The cubic root of 1318542828 is about 1096.5575100174.

The spelling of 1318542828 in words is "one billion, three hundred eighteen million, five hundred forty-two thousand, eight hundred twenty-eight".