20983828 has 24 divisors (see below), whose sum is σ = 39559520. Its totient is φ = 9707040.

The previous prime is 20983799. The next prime is 20983891. The reversal of 20983828 is 82838902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58 + ... + 6478.

Almost surely, 2^20983828 is an apocalyptic number.

It is an amenable number.

20983828 is a deficient number, since it is larger than the sum of its proper divisors (18575692).

20983828 is a wasteful number, since it uses less digits than its factorization.

20983828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6487 (or 6485 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 20983828 is about 4580.8108452544. The cubic root of 20983828 is about 275.8215783050.

The spelling of 20983828 in words is "twenty million, nine hundred eighty-three thousand, eight hundred twenty-eight".