20604326 has 16 divisors (see below), whose sum is σ = 32292000. Its totient is φ = 9847488.

The previous prime is 20604317. The next prime is 20604347. The reversal of 20604326 is 62340602.

It is a Curzon number.

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, 4250 + ... + 7698.

It is an arithmetic number, because the mean of its divisors is an integer number (2018250).

Almost surely, 2^20604326 is an apocalyptic number.

20604326 is a deficient number, since it is larger than the sum of its proper divisors (11687674).

20604326 is a wasteful number, since it uses less digits than its factorization.

20604326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20604326 is about 4539.1988279872. The cubic root of 20604326 is about 274.1486663697.

Adding to 20604326 its reverse (62340602), we get a palindrome (82944928).

The spelling of 20604326 in words is "twenty million, six hundred four thousand, three hundred twenty-six".