20045335 has 8 divisors (see below), whose sum is σ = 24079536. Its totient is φ = 16019520.

The previous prime is 20045327. The next prime is 20045339. The reversal of 20045335 is 53354002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20045335 - 2³ = 20045327 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 (20045339) 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, 6052 + ... + 8758.

It is an arithmetic number, because the mean of its divisors is an integer number (3009942).

Almost surely, 2^20045335 is an apocalyptic number.

20045335 is a deficient number, since it is larger than the sum of its proper divisors (4034201).

20045335 is a wasteful number, since it uses less digits than its factorization.

20045335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 20045335 is about 4477.2016930221. The cubic root of 20045335 is about 271.6467037577.

Adding to 20045335 its reverse (53354002), we get a palindrome (73399337).

The spelling of 20045335 in words is "twenty million, forty-five thousand, three hundred thirty-five".