20211413 has 8 divisors (see below), whose sum is σ = 20666016. Its totient is φ = 19762000.

The previous prime is 20211407. The next prime is 20211461. The reversal of 20211413 is 31411202.

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 20211413 - 2⁸ = 20211157 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 (20211493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7178 + ... + 9588.

It is an arithmetic number, because the mean of its divisors is an integer number (2583252).

Almost surely, 2^20211413 is an apocalyptic number.

It is an amenable number.

20211413 is a deficient number, since it is larger than the sum of its proper divisors (454603).

20211413 is a wasteful number, since it uses less digits than its factorization.

20211413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20211413 is about 4495.7105111428. The cubic root of 20211413 is about 272.3948498720.

Adding to 20211413 its reverse (31411202), we get a palindrome (51622615).

The spelling of 20211413 in words is "twenty million, two hundred eleven thousand, four hundred thirteen".