20221413 has 4 divisors (see below), whose sum is σ = 26961888. Its totient is φ = 13480940.

The previous prime is 20221403. The next prime is 20221427. The reversal of 20221413 is 31412202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20221413 - 2⁹ = 20220901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221392 and 20221401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221403) 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 3 ways as a sum of consecutive naturals, for example, 3370233 + ... + 3370238.

It is an arithmetic number, because the mean of its divisors is an integer number (6740472).

Almost surely, 2^20221413 is an apocalyptic number.

It is an amenable number.

20221413 is a deficient number, since it is larger than the sum of its proper divisors (6740475).

20221413 is an equidigital number, since it uses as much as digits as its factorization.

20221413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6740474.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20221413 is about 4496.8225448643. The cubic root of 20221413 is about 272.4397667280.

Adding to 20221413 its reverse (31412202), we get a palindrome (51633615).

The spelling of 20221413 in words is "twenty million, two hundred twenty-one thousand, four hundred thirteen".