20605035 has 32 divisors (see below), whose sum is σ = 36744192. Its totient is φ = 9774080.

The previous prime is 20605021. The next prime is 20605043. The reversal of 20605035 is 53050602.

It is not a de Polignac number, because 20605035 - 2⁴ = 20605019 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 6427 + ... + 9083.

It is an arithmetic number, because the mean of its divisors is an integer number (1148256).

Almost surely, 2^20605035 is an apocalyptic number.

20605035 is a deficient number, since it is larger than the sum of its proper divisors (16139157).

20605035 is a wasteful number, since it uses less digits than its factorization.

20605035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 20605035 is about 4539.2769247976. The cubic root of 20605035 is about 274.1518108417.

Adding to 20605035 its reverse (53050602), we get a palindrome (73655637).

The spelling of 20605035 in words is "twenty million, six hundred five thousand, thirty-five".