20238093 has 10 divisors (see below), whose sum is σ = 30232334. Its totient is φ = 13492008.

The previous prime is 20238089. The next prime is 20238131. The reversal of 20238093 is 39083202.

It can be written as a sum of positive squares in only one way, i.e., 20088324 + 149769 = 4482^2 + 387^2 .

It is not a de Polignac number, because 20238093 - 2² = 20238089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20238073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 124846 + ... + 125007.

Almost surely, 2^20238093 is an apocalyptic number.

It is an amenable number.

20238093 is a deficient number, since it is larger than the sum of its proper divisors (9994241).

20238093 is an equidigital number, since it uses as much as digits as its factorization.

20238093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249865 (or 249856 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20238093 is about 4498.6768054618. The cubic root of 20238093 is about 272.5146551050.

The spelling of 20238093 in words is "twenty million, two hundred thirty-eight thousand, ninety-three".