20608328 has 32 divisors (see below), whose sum is σ = 43054200. Its totient is φ = 9182208.

The previous prime is 20608277. The next prime is 20608349. The reversal of 20608328 is 82380602.

It can be written as a sum of positive squares in 4 ways, for example, as 10252804 + 10355524 = 3202^2 + 3218^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 20608328.

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, 401 + ... + 6432.

Almost surely, 2^20608328 is an apocalyptic number.

It is an amenable number.

20608328 is an abundant number, since it is smaller than the sum of its proper divisors (22445872).

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

20608328 is a wasteful number, since it uses less digits than its factorization.

20608328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881 (or 6877 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 20608328 is about 4539.6396332749. The cubic root of 20608328 is about 274.1664146157.

The spelling of 20608328 in words is "twenty million, six hundred eight thousand, three hundred twenty-eight".