20710232 has 48 divisors (see below), whose sum is σ = 41872320. Its totient is φ = 9590400.

The previous prime is 20710231. The next prime is 20710237. The reversal of 20710232 is 23201702.

It is a self number, because there is not a number n which added to its sum of digits gives 20710232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20710231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339482 + ... + 339542.

It is an arithmetic number, because the mean of its divisors is an integer number (872340).

Almost surely, 2^20710232 is an apocalyptic number.

It is an amenable number.

20710232 is an abundant number, since it is smaller than the sum of its proper divisors (21162088).

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

20710232 is a wasteful number, since it uses less digits than its factorization.

20710232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 20710232 is about 4550.8495910105. The cubic root of 20710232 is about 274.6175709004.

Adding to 20710232 its reverse (23201702), we get a palindrome (43911934).

The spelling of 20710232 in words is "twenty million, seven hundred ten thousand, two hundred thirty-two".