20726232 has 16 divisors (see below), whose sum is σ = 51815640. Its totient is φ = 6908736.

The previous prime is 20726191. The next prime is 20726239. The reversal of 20726232 is 23262702.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 863593 = 20726232 / (2 + 0 + 7 + 2 + 6 + 2 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20726239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431773 + ... + 431820.

Almost surely, 2^20726232 is an apocalyptic number.

It is an amenable number.

20726232 is an abundant number, since it is smaller than the sum of its proper divisors (31089408).

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

20726232 is a wasteful number, since it uses less digits than its factorization.

20726232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863602 (or 863598 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 20726232 is about 4552.6071651308. The cubic root of 20726232 is about 274.6882726691.

Adding to 20726232 its reverse (23262702), we get a palindrome (43988934).

The spelling of 20726232 in words is "twenty million, seven hundred twenty-six thousand, two hundred thirty-two".