20444632 has 16 divisors (see below), whose sum is σ = 41282640. Its totient is φ = 9435936.

The previous prime is 20444579. The next prime is 20444639. The reversal of 20444632 is 23644402.

It is a junction number, because it is equal to n+sod(n) for n = 20444597 and 20444606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444639) 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, 98188 + ... + 98395.

It is an arithmetic number, because the mean of its divisors is an integer number (2580165).

Almost surely, 2^20444632 is an apocalyptic number.

It is an amenable number.

20444632 is an abundant number, since it is smaller than the sum of its proper divisors (20838008).

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

20444632 is a wasteful number, since it uses less digits than its factorization.

20444632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196602 (or 196598 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 20444632 is about 4521.5740622044. The cubic root of 20444632 is about 273.4385648089.

The spelling of 20444632 in words is "twenty million, four hundred forty-four thousand, six hundred thirty-two".