20001413 has 8 divisors (see below), whose sum is σ = 20433600. Its totient is φ = 19572448.

The previous prime is 20001389. The next prime is 20001439. The reversal of 20001413 is 31410002.

It is a happy number.

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 20001413 - 2¹⁰ = 20000389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20001394 and 20001403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001613) 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, 14873 + ... + 16161.

It is an arithmetic number, because the mean of its divisors is an integer number (2554200).

Almost surely, 2^20001413 is an apocalyptic number.

It is an amenable number.

20001413 is a deficient number, since it is larger than the sum of its proper divisors (432187).

20001413 is a wasteful number, since it uses less digits than its factorization.

20001413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20001413 is about 4472.2939304120. The cubic root of 20001413 is about 271.4481539624.

Adding to 20001413 its reverse (31410002), we get a palindrome (51411415).

The spelling of 20001413 in words is "twenty million, one thousand, four hundred thirteen".