20216335 has 8 divisors (see below), whose sum is σ = 25096320. Its totient is φ = 15615264.

The previous prime is 20216311. The next prime is 20216341. The reversal of 20216335 is 53361202.

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 20216335 - 2⁵ = 20216303 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 69567 + ... + 69856.

It is an arithmetic number, because the mean of its divisors is an integer number (3137040).

Almost surely, 2^20216335 is an apocalyptic number.

20216335 is a deficient number, since it is larger than the sum of its proper divisors (4879985).

20216335 is a wasteful number, since it uses less digits than its factorization.

20216335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139457.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 20216335 is about 4496.2578885113. The cubic root of 20216335 is about 272.4169597996.

Adding to 20216335 its reverse (53361202), we get a palindrome (73577537).

The spelling of 20216335 in words is "twenty million, two hundred sixteen thousand, three hundred thirty-five".