20234517 has 8 divisors (see below), whose sum is σ = 27025824. Its totient is φ = 13466448.

The previous prime is 20234483. The next prime is 20234521. The reversal of 20234517 is 71543202.

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

It is not a de Polignac number, because 20234517 - 2²⁰ = 19185941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234117) 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, 3663 + ... + 7340.

It is an arithmetic number, because the mean of its divisors is an integer number (3378228).

Almost surely, 2^20234517 is an apocalyptic number.

It is an amenable number.

20234517 is a deficient number, since it is larger than the sum of its proper divisors (6791307).

20234517 is a wasteful number, since it uses less digits than its factorization.

20234517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11619.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20234517 is about 4498.2793377024. The cubic root of 20234517 is about 272.4986033652.

Adding to 20234517 its reverse (71543202), we get a palindrome (91777719).

The spelling of 20234517 in words is "twenty million, two hundred thirty-four thousand, five hundred seventeen".