1313218896 has 160 divisors (see below), whose sum is σ = 3947366400. Its totient is φ = 372003840.

The previous prime is 1313218853. The next prime is 1313218903. The reversal of 1313218896 is 6988123131.

It is a super-2 number, since 2×1313218896² = 3449087737622917632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 791700 + ... + 793356.

It is an arithmetic number, because the mean of its divisors is an integer number (24671040).

Almost surely, 2^1313218896 is an apocalyptic number.

1313218896 is a gapful number since it is divisible by the number (16) 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 1313218896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1973683200).

1313218896 is an abundant number, since it is smaller than the sum of its proper divisors (2634147504).

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

1313218896 is a wasteful number, since it uses less digits than its factorization.

1313218896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777 (or 1771 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 1313218896 is about 36238.3622146476. The cubic root of 1313218896 is about 1095.0796480919.

The spelling of 1313218896 in words is "one billion, three hundred thirteen million, two hundred eighteen thousand, eight hundred ninety-six".