1328128410 has 64 divisors (see below), whose sum is σ = 3646944000. Its totient is φ = 303232512.

The previous prime is 1328128393. The next prime is 1328128421. The reversal of 1328128410 is 148218231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217276 + ... + 223304.

It is an arithmetic number, because the mean of its divisors is an integer number (56983500).

Almost surely, 2^1328128410 is an apocalyptic number.

1328128410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328128410 is an abundant number, since it is smaller than the sum of its proper divisors (2318815590).

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

1328128410 is a wasteful number, since it uses less digits than its factorization.

1328128410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7095.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1328128410 is about 36443.4961275671. The cubic root of 1328128410 is about 1099.2083587879.

The spelling of 1328128410 in words is "one billion, three hundred twenty-eight million, one hundred twenty-eight thousand, four hundred ten".