20075828 has 6 divisors (see below), whose sum is σ = 35132706. Its totient is φ = 10037912.

The previous prime is 20075821. The next prime is 20075831. The reversal of 20075828 is 82857002.

It can be written as a sum of positive squares in only one way, i.e., 18905104 + 1170724 = 4348^2 + 1082^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20075794 and 20075803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20075821) by changing a digit.

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 as a sum of consecutive naturals, namely, 2509475 + ... + 2509482.

It is an arithmetic number, because the mean of its divisors is an integer number (5855451).

Almost surely, 2^20075828 is an apocalyptic number.

It is an amenable number.

20075828 is a deficient number, since it is larger than the sum of its proper divisors (15056878).

20075828 is a wasteful number, since it uses less digits than its factorization.

20075828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018961 (or 5018959 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 20075828 is about 4480.6057626174. The cubic root of 20075828 is about 271.7843771246.

The spelling of 20075828 in words is "twenty million, seventy-five thousand, eight hundred twenty-eight".