20620232 has 16 divisors (see below), whose sum is σ = 39098700. Its totient is φ = 10193920.

The previous prime is 20620231. The next prime is 20620241. The reversal of 20620232 is 23202602.

It can be written as a sum of positive squares in 2 ways, for example, as 20376196 + 244036 = 4514^2 + 494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20620232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620231) 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, 13769 + ... + 15192.

Almost surely, 2^20620232 is an apocalyptic number.

It is an amenable number.

20620232 is a deficient number, since it is larger than the sum of its proper divisors (18478468).

20620232 is a wasteful number, since it uses less digits than its factorization.

20620232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29056 (or 29052 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20620232 is about 4540.9505612812. The cubic root of 20620232 is about 274.2191934211.

Adding to 20620232 its reverse (23202602), we get a palindrome (43822834).

The spelling of 20620232 in words is "twenty million, six hundred twenty thousand, two hundred thirty-two".