20020413 has 16 divisors (see below), whose sum is σ = 31218176. Its totient is φ = 11173680.

The previous prime is 20020387. The next prime is 20020421. The reversal of 20020413 is 31402002.

It is not a de Polignac number, because 20020413 - 2⁸ = 20020157 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 (20020453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10183 + ... + 11988.

It is an arithmetic number, because the mean of its divisors is an integer number (1951136).

Almost surely, 2^20020413 is an apocalyptic number.

It is an amenable number.

20020413 is a deficient number, since it is larger than the sum of its proper divisors (11197763).

20020413 is a wasteful number, since it uses less digits than its factorization.

20020413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22224.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20020413 is about 4474.4176157350. The cubic root of 20020413 is about 271.5340792700.

Adding to 20020413 its reverse (31402002), we get a palindrome (51422415).

The spelling of 20020413 in words is "twenty million, twenty thousand, four hundred thirteen".