20028359 has 12 divisors (see below), whose sum is σ = 22280616. Its totient is φ = 17982432.

The previous prime is 20028347. The next prime is 20028389. The reversal of 20028359 is 95382002.

It is not a de Polignac number, because 20028359 - 2¹⁶ = 19962823 is a prime.

It is a super-2 number, since 2×20028359² = 802270328465762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20028389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4652 + ... + 7854.

It is an arithmetic number, because the mean of its divisors is an integer number (1856718).

Almost surely, 2^20028359 is an apocalyptic number.

20028359 is a deficient number, since it is larger than the sum of its proper divisors (2252257).

20028359 is a wasteful number, since it uses less digits than its factorization.

20028359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266 (or 3253 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 20028359 is about 4475.3054644348. The cubic root of 20028359 is about 271.5699980163.

The spelling of 20028359 in words is "twenty million, twenty-eight thousand, three hundred fifty-nine".