20683028 has 12 divisors (see below), whose sum is σ = 36244320. Its totient is φ = 10327512.

The previous prime is 20683021. The next prime is 20683031. The reversal of 20683028 is 82038602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20683021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275 + ... + 6437.

It is an arithmetic number, because the mean of its divisors is an integer number (3020360).

Almost surely, 2^20683028 is an apocalyptic number.

It is an amenable number.

20683028 is a deficient number, since it is larger than the sum of its proper divisors (15561292).

20683028 is a wasteful number, since it uses less digits than its factorization.

20683028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7006 (or 7004 counting only the distinct ones).

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

The square root of 20683028 is about 4547.8597163941. The cubic root of 20683028 is about 274.4972765801.

The spelling of 20683028 in words is "twenty million, six hundred eighty-three thousand, twenty-eight".