20045035 has 4 divisors (see below), whose sum is σ = 24054048. Its totient is φ = 16036024.

The previous prime is 20045017. The next prime is 20045063. The reversal of 20045035 is 53054002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20045035 - 2¹⁷ = 19913963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2004499 + ... + 2004508.

It is an arithmetic number, because the mean of its divisors is an integer number (6013512).

Almost surely, 2^20045035 is an apocalyptic number.

20045035 is a deficient number, since it is larger than the sum of its proper divisors (4009013).

20045035 is an equidigital number, since it uses as much as digits as its factorization.

20045035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4009012.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20045035 is about 4477.1681898271. The cubic root of 20045035 is about 271.6453485892.

Adding to 20045035 its reverse (53054002), we get a palindrome (73099037).

The spelling of 20045035 in words is "twenty million, forty-five thousand, thirty-five".