1328048881 has 16 divisors (see below), whose sum is σ = 1413622800. Its totient is φ = 1245259008.

The previous prime is 1328048863. The next prime is 1328048927. The reversal of 1328048881 is 1888408231.

It can be written as a sum of positive squares in 8 ways, for example, as 292239025 + 1035809856 = 17095^2 + 32184^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328048881 - 2⁵ = 1328048849 is a prime.

It is a super-2 number, since 2×1328048881² = 3527427660650704322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1328048831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888771 + ... + 890263.

It is an arithmetic number, because the mean of its divisors is an integer number (88351425).

Almost surely, 2^1328048881 is an apocalyptic number.

It is an amenable number.

1328048881 is a deficient number, since it is larger than the sum of its proper divisors (85573919).

1328048881 is a wasteful number, since it uses less digits than its factorization.

1328048881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388.

The product of its (nonzero) digits is 98304, while the sum is 43.

The square root of 1328048881 is about 36442.4049837548. The cubic root of 1328048881 is about 1099.1864179660.

The spelling of 1328048881 in words is "one billion, three hundred twenty-eight million, forty-eight thousand, eight hundred eighty-one".