1328831608 has 32 divisors (see below), whose sum is σ = 2690377200. Its totient is φ = 611670528.

The previous prime is 1328831597. The next prime is 1328831641. The reversal of 1328831608 is 8061388231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22560 + ... + 56272.

Almost surely, 2^1328831608 is an apocalyptic number.

It is an amenable number.

1328831608 is an abundant number, since it is smaller than the sum of its proper divisors (1361545592).

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

1328831608 is a wasteful number, since it uses less digits than its factorization.

1328831608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34111 (or 34107 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1328831608 is about 36453.1426354437. The cubic root of 1328831608 is about 1099.4023221464.

The spelling of 1328831608 in words is "one billion, three hundred twenty-eight million, eight hundred thirty-one thousand, six hundred eight".