1328084290 has 64 divisors (see below), whose sum is σ = 2735480160. Its totient is φ = 460615680.

The previous prime is 1328084281. The next prime is 1328084309. The reversal of 1328084290 is 924808231.

It can be written as a sum of positive squares in 16 ways, for example, as 144793089 + 1183291201 = 12033^2 + 34399^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 134730 + ... + 144250.

Almost surely, 2^1328084290 is an apocalyptic number.

1328084290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328084290 is an abundant number, since it is smaller than the sum of its proper divisors (1407395870).

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

1328084290 is a wasteful number, since it uses less digits than its factorization.

1328084290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9607.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1328084290 is about 36442.8908019109. The cubic root of 1328084290 is about 1099.1961868700.

The spelling of 1328084290 in words is "one billion, three hundred twenty-eight million, eighty-four thousand, two hundred ninety".