20302606 has 8 divisors (see below), whose sum is σ = 31778064. Its totient is φ = 9709920.

The previous prime is 20302567. The next prime is 20302609. The reversal of 20302606 is 60620302.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302609) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 220635 + ... + 220726.

It is an arithmetic number, because the mean of its divisors is an integer number (3972258).

Almost surely, 2^20302606 is an apocalyptic number.

20302606 is a deficient number, since it is larger than the sum of its proper divisors (11475458).

20302606 is a wasteful number, since it uses less digits than its factorization.

20302606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441386.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20302606 is about 4505.8413198869. The cubic root of 20302606 is about 272.8039130939.

Adding to 20302606 its reverse (60620302), we get a palindrome (80922908).

The spelling of 20302606 in words is "twenty million, three hundred two thousand, six hundred six".