20532304 has 20 divisors (see below), whose sum is σ = 42841876. Its totient is φ = 9476352.

The previous prime is 20532301. The next prime is 20532313. The reversal of 20532304 is 40323502.

It can be written as a sum of positive squares in 2 ways, for example, as 11888704 + 8643600 = 3448^2 + 2940^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20532301) 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, 49149 + ... + 49564.

Almost surely, 2^20532304 is an apocalyptic number.

It is an amenable number.

20532304 is an abundant number, since it is smaller than the sum of its proper divisors (22309572).

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

20532304 is a wasteful number, since it uses less digits than its factorization.

20532304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98734 (or 98728 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20532304 is about 4531.2585448195. The cubic root of 20532304 is about 273.8288664436.

Adding to 20532304 its reverse (40323502), we get a palindrome (60855806).

The spelling of 20532304 in words is "twenty million, five hundred thirty-two thousand, three hundred four".