1328412520 has 32 divisors (see below), whose sum is σ = 2996766720. Its totient is φ = 529971520.

The previous prime is 1328412479. The next prime is 1328412611. The reversal of 1328412520 is 252148231.

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 7 ways as a sum of consecutive naturals, for example, 28036 + ... + 58675.

It is an arithmetic number, because the mean of its divisors is an integer number (93648960).

Almost surely, 2^1328412520 is an apocalyptic number.

1328412520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1328412520 is an abundant number, since it is smaller than the sum of its proper divisors (1668354200).

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

1328412520 is a wasteful number, since it uses less digits than its factorization.

1328412520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87105 (or 87101 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1328412520 is about 36447.3938711672. The cubic root of 1328412520 is about 1099.2867331927.

The spelling of 1328412520 in words is "one billion, three hundred twenty-eight million, four hundred twelve thousand, five hundred twenty".