20236028 has 6 divisors (see below), whose sum is σ = 35413056. Its totient is φ = 10118012.

The previous prime is 20235989. The next prime is 20236031. The reversal of 20236028 is 82063202.

It is a junction number, because it is equal to n+sod(n) for n = 20235994 and 20236012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2529500 + ... + 2529507.

It is an arithmetic number, because the mean of its divisors is an integer number (5902176).

Almost surely, 2^20236028 is an apocalyptic number.

It is an amenable number.

20236028 is a deficient number, since it is larger than the sum of its proper divisors (15177028).

20236028 is a wasteful number, since it uses less digits than its factorization.

20236028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059011 (or 5059009 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20236028 is about 4498.4472876760. The cubic root of 20236028 is about 272.5053860844.

The spelling of 20236028 in words is "twenty million, two hundred thirty-six thousand, twenty-eight".