20444382 has 24 divisors (see below), whose sum is σ = 50624496. Its totient is φ = 5841216.

The previous prime is 20444381. The next prime is 20444429. The reversal of 20444382 is 28344402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81003 + ... + 81254.

It is an arithmetic number, because the mean of its divisors is an integer number (2109354).

Almost surely, 2^20444382 is an apocalyptic number.

20444382 is an abundant number, since it is smaller than the sum of its proper divisors (30180114).

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

20444382 is a wasteful number, since it uses less digits than its factorization.

20444382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162272 (or 162269 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 20444382 is about 4521.5464168800. The cubic root of 20444382 is about 273.4374502552.

Adding to 20444382 its reverse (28344402), we get a palindrome (48788784).

The spelling of 20444382 in words is "twenty million, four hundred forty-four thousand, three hundred eighty-two".