20795628 has 48 divisors (see below), whose sum is σ = 56962304. Its totient is φ = 5780160.

The previous prime is 20795623. The next prime is 20795647. The reversal of 20795628 is 82659702.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20795623) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 238 + ... + 6453.

Almost surely, 2^20795628 is an apocalyptic number.

20795628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20795628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28481152).

20795628 is an abundant number, since it is smaller than the sum of its proper divisors (36166676).

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

20795628 is a wasteful number, since it uses less digits than its factorization.

20795628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742 (or 6740 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 20795628 is about 4560.2223629994. Note that the first 3 decimals coincide. The cubic root of 20795628 is about 274.9945034714.

The spelling of 20795628 in words is "twenty million, seven hundred ninety-five thousand, six hundred twenty-eight".