20759028 has 24 divisors (see below), whose sum is σ = 48739488. Its totient is φ = 6876576.

The previous prime is 20758979. The next prime is 20759029. The reversal of 20759028 is 82095702.

It is a self number, because there is not a number n which added to its sum of digits gives 20759028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20759029) 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 7 ways as a sum of consecutive naturals, for example, 3351 + ... + 7262.

It is an arithmetic number, because the mean of its divisors is an integer number (2030812).

Almost surely, 2^20759028 is an apocalyptic number.

It is an amenable number.

20759028 is an abundant number, since it is smaller than the sum of its proper divisors (27980460).

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

20759028 is a wasteful number, since it uses less digits than its factorization.

20759028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10783 (or 10781 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 20759028 is about 4556.2076335479. The cubic root of 20759028 is about 274.8330799703.

The spelling of 20759028 in words is "twenty million, seven hundred fifty-nine thousand, twenty-eight".