20583828 has 24 divisors (see below), whose sum is σ = 53365760. Its totient is φ = 6861240.

The previous prime is 20583811. The next prime is 20583841. The reversal of 20583828 is 82838502.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20583792 and 20583801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95188 + ... + 95403.

Almost surely, 2^20583828 is an apocalyptic number.

It is an amenable number.

20583828 is an abundant number, since it is smaller than the sum of its proper divisors (32781932).

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

20583828 is a wasteful number, since it uses less digits than its factorization.

20583828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190604 (or 190596 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 20583828 is about 4536.9403787134. The cubic root of 20583828 is about 274.0577248866.

It can be divided in two parts, 2058 and 3828, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 20583828 in words is "twenty million, five hundred eighty-three thousand, eight hundred twenty-eight".