20430093 has 8 divisors (see below), whose sum is σ = 27288000. Its totient is φ = 13596128.

The previous prime is 20430083. The next prime is 20430121. The reversal of 20430093 is 39003402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20430093 - 2⁴ = 20430077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888 + ... + 7481.

It is an arithmetic number, because the mean of its divisors is an integer number (3411000).

Almost surely, 2^20430093 is an apocalyptic number.

It is an amenable number.

20430093 is a deficient number, since it is larger than the sum of its proper divisors (6857907).

20430093 is a wasteful number, since it uses less digits than its factorization.

20430093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11971.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 20430093 is about 4519.9660396954. The cubic root of 20430093 is about 273.3737317181.

Adding to 20430093 its reverse (39003402), we get a palindrome (59433495).

The spelling of 20430093 in words is "twenty million, four hundred thirty thousand, ninety-three".