20327504 has 20 divisors (see below), whose sum is σ = 40450164. Its totient is φ = 9888768.

The previous prime is 20327501. The next prime is 20327509. The reversal of 20327504 is 40572302.

It can be written as a sum of positive squares in 2 ways, for example, as 14077504 + 6250000 = 3752^2 + 2500^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20327504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20327501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16577 + ... + 17760.

Almost surely, 2^20327504 is an apocalyptic number.

It is an amenable number.

20327504 is a deficient number, since it is larger than the sum of its proper divisors (20122660).

20327504 is a wasteful number, since it uses less digits than its factorization.

20327504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34382 (or 34376 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20327504 is about 4508.6033314099. The cubic root of 20327504 is about 272.9153847799.

Adding to 20327504 its reverse (40572302), we get a palindrome (60899806).

The spelling of 20327504 in words is "twenty million, three hundred twenty-seven thousand, five hundred four".