20332213 has 8 divisors (see below), whose sum is σ = 22243680. Its totient is φ = 18431280.

The previous prime is 20332211. The next prime is 20332217. The reversal of 20332213 is 31223302.

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 20332213 - 2¹ = 20332211 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 (20332211) 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, 1731 + ... + 6607.

It is an arithmetic number, because the mean of its divisors is an integer number (2780460).

Almost surely, 2^20332213 is an apocalyptic number.

It is an amenable number.

20332213 is a deficient number, since it is larger than the sum of its proper divisors (1911467).

20332213 is a wasteful number, since it uses less digits than its factorization.

20332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20332213 is about 4509.1255249771. The cubic root of 20332213 is about 272.9364573674.

Adding to 20332213 its reverse (31223302), we get a palindrome (51555515).

It can be divided in two parts, 20 and 332213, that added together give a palindrome (332233).

The spelling of 20332213 in words is "twenty million, three hundred thirty-two thousand, two hundred thirteen".