1328463808 has 112 divisors (see below), whose sum is σ = 3163092480. Its totient is φ = 541246464.

The previous prime is 1328463803. The next prime is 1328463809. The reversal of 1328463808 is 8083648231.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328463803) 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, 2359335 + ... + 2359897.

Almost surely, 2^1328463808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1328463808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581546240).

1328463808 is an abundant number, since it is smaller than the sum of its proper divisors (1834628672).

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

1328463808 is a wasteful number, since it uses less digits than its factorization.

1328463808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 1328463808 is about 36448.0974537767. The cubic root of 1328463808 is about 1099.3008802771.

The spelling of 1328463808 in words is "one billion, three hundred twenty-eight million, four hundred sixty-three thousand, eight hundred eight".