20017413 has 24 divisors (see below), whose sum is σ = 32148480. Its totient is φ = 11918880.

The previous prime is 20017409. The next prime is 20017421. The reversal of 20017413 is 31471002.

It is not a de Polignac number, because 20017413 - 2² = 20017409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20017423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 868 + ... + 6386.

It is an arithmetic number, because the mean of its divisors is an integer number (1339520).

Almost surely, 2^20017413 is an apocalyptic number.

It is an amenable number.

20017413 is a deficient number, since it is larger than the sum of its proper divisors (12131067).

20017413 is a wasteful number, since it uses less digits than its factorization.

20017413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5569 (or 5566 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 20017413 is about 4474.0823640161. The cubic root of 20017413 is about 271.5205157314.

Adding to 20017413 its reverse (31471002), we get a palindrome (51488415).

The spelling of 20017413 in words is "twenty million, seventeen thousand, four hundred thirteen".