20706232 has 32 divisors (see below), whose sum is σ = 40500000. Its totient is φ = 9912448.

The previous prime is 20706209. The next prime is 20706239. The reversal of 20706232 is 23260702.

It is a super-3 number, since 3×20706232³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20706239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34269 + ... + 34867.

It is an arithmetic number, because the mean of its divisors is an integer number (1265625).

Almost surely, 2^20706232 is an apocalyptic number.

It is an amenable number.

20706232 is a deficient number, since it is larger than the sum of its proper divisors (19793768).

20706232 is a wasteful number, since it uses less digits than its factorization.

20706232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20706232 is about 4550.4100914093. The cubic root of 20706232 is about 274.5998897688.

Adding to 20706232 its reverse (23260702), we get a palindrome (43966934).

The spelling of 20706232 in words is "twenty million, seven hundred six thousand, two hundred thirty-two".