20004413 has 8 divisors (see below), whose sum is σ = 23501856. Its totient is φ = 16786800.

The previous prime is 20004367. The next prime is 20004419. The reversal of 20004413 is 31440002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20004413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004419) 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, 69803 + ... + 70088.

It is an arithmetic number, because the mean of its divisors is an integer number (2937732).

Almost surely, 2^20004413 is an apocalyptic number.

It is an amenable number.

20004413 is a deficient number, since it is larger than the sum of its proper divisors (3497443).

20004413 is a wasteful number, since it uses less digits than its factorization.

20004413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139915.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20004413 is about 4472.6293161853. The cubic root of 20004413 is about 271.4617247328.

Adding to 20004413 its reverse (31440002), we get a palindrome (51444415).

The spelling of 20004413 in words is "twenty million, four thousand, four hundred thirteen".