1328897080 has 32 divisors (see below), whose sum is σ = 3417164640. Its totient is φ = 455621760.

The previous prime is 1328897077. The next prime is 1328897081. The reversal of 1328897080 is 807988231.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1328897080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328897081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2372751 + ... + 2373310.

It is an arithmetic number, because the mean of its divisors is an integer number (106786395).

Almost surely, 2^1328897080 is an apocalyptic number.

1328897080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1328897080 is an abundant number, since it is smaller than the sum of its proper divisors (2088267560).

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

1328897080 is a wasteful number, since it uses less digits than its factorization.

1328897080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746079 (or 4746075 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 1328897080 is about 36454.0406539522. The cubic root of 1328897080 is about 1099.4203778294.

The spelling of 1328897080 in words is "one billion, three hundred twenty-eight million, eight hundred ninety-seven thousand, eighty".