20302028 has 12 divisors (see below), whose sum is σ = 35632800. Its totient is φ = 10121232.

The previous prime is 20302027. The next prime is 20302067. The reversal of 20302028 is 82020302.

It is a junction number, because it is equal to n+sod(n) for n = 20301997 and 20302015.

It is not an unprimeable number, because it can be changed into a prime (20302027) 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, 5876 + ... + 8667.

It is an arithmetic number, because the mean of its divisors is an integer number (2969400).

Almost surely, 2^20302028 is an apocalyptic number.

It is an amenable number.

20302028 is a deficient number, since it is larger than the sum of its proper divisors (15330772).

20302028 is a wasteful number, since it uses less digits than its factorization.

20302028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14896 (or 14894 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20302028 is about 4505.7771804651. Note that the first 3 decimals coincide. The cubic root of 20302028 is about 272.8013242283.

The spelling of 20302028 in words is "twenty million, three hundred two thousand, twenty-eight".