1328024820840 has 32 divisors (see below), whose sum is σ = 3984074462880. Its totient is φ = 354139952192.

The previous prime is 1328024820839. The next prime is 1328024820841. The reversal of 1328024820840 is 480284208231.

It is an interprime number because it is at equal distance from previous prime (1328024820839) and next prime (1328024820841).

It is a super-2 number, since 2×1328024820840² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1328024820792 and 1328024820801.

It is not an unprimeable number, because it can be changed into a prime (1328024820841) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5533436634 + ... + 5533436873.

It is an arithmetic number, because the mean of its divisors is an integer number (124502326965).

Almost surely, 2^{1328024820840} is an apocalyptic number.

1328024820840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1328024820840 is an abundant number, since it is smaller than the sum of its proper divisors (2656049642040).

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

1328024820840 is a wasteful number, since it uses less digits than its factorization.

1328024820840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11066873521 (or 11066873517 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The spelling of 1328024820840 in words is "one trillion, three hundred twenty-eight billion, twenty-four million, eight hundred twenty thousand, eight hundred forty".