20435045 has 8 divisors (see below), whose sum is σ = 25313280. Its totient is φ = 15820560.

The previous prime is 20435039. The next prime is 20435059. The reversal of 20435045 is 54053402.

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

It is not a de Polignac number, because 20435045 - 2⁸ = 20434789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20435045.

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, 65765 + ... + 66074.

It is an arithmetic number, because the mean of its divisors is an integer number (3164160).

Almost surely, 2^20435045 is an apocalyptic number.

It is an amenable number.

20435045 is a deficient number, since it is larger than the sum of its proper divisors (4878235).

20435045 is a wasteful number, since it uses less digits than its factorization.

20435045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131875.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 20435045 is about 4520.5137982313. The cubic root of 20435045 is about 273.3958173959.

Adding to 20435045 its reverse (54053402), we get a palindrome (74488447).

The spelling of 20435045 in words is "twenty million, four hundred thirty-five thousand, forty-five".