20795328 has 84 divisors (see below), whose sum is σ = 60492640. Its totient is φ = 6829056.

The previous prime is 20795311. The next prime is 20795339. The reversal of 20795328 is 82359702.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20795292 and 20795301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45276 + ... + 45732.

Almost surely, 2^20795328 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 20795328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30246320).

20795328 is an abundant number, since it is smaller than the sum of its proper divisors (39697312).

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

20795328 is a wasteful number, since it uses less digits than its factorization.

20795328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 20795328 is about 4560.1894697479. The cubic root of 20795328 is about 274.9931810981.

The spelling of 20795328 in words is "twenty million, seven hundred ninety-five thousand, three hundred twenty-eight".