20604372 has 24 divisors (see below), whose sum is σ = 48240192. Its totient is φ = 6844800.

The previous prime is 20604359. The next prime is 20604407. The reversal of 20604372 is 27340602.

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, 972 + ... + 6492.

It is an arithmetic number, because the mean of its divisors is an integer number (2010008).

Almost surely, 2^20604372 is an apocalyptic number.

It is an amenable number.

20604372 is an abundant number, since it is smaller than the sum of its proper divisors (27635820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20604372 is a wasteful number, since it uses less digits than its factorization.

20604372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839 (or 5837 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 20604372 is about 4539.2038949578. The cubic root of 20604372 is about 274.1488703856.

Adding to 20604372 its reverse (27340602), we get a palindrome (47944974).

The spelling of 20604372 in words is "twenty million, six hundred four thousand, three hundred seventy-two".