1328908 has 24 divisors (see below), whose sum is σ = 2745344. Its totient is φ = 550800.

The previous prime is 1328897. The next prime is 1328909. The reversal of 1328908 is 8098231.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 1328908.

It is not an unprimeable number, because it can be changed into a prime (1328909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103 + ... + 1633.

2^1328908 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 1328908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372672).

1328908 is an abundant number, since it is smaller than the sum of its proper divisors (1416436).

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

1328908 is a wasteful number, since it uses less digits than its factorization.

1328908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1571 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1328908 is about 1152.7827202036. The cubic root of 1328908 is about 109.9423389258.

The spelling of 1328908 in words is "one million, three hundred twenty-eight thousand, nine hundred eight".