20244152 has 8 divisors (see below), whose sum is σ = 37957800. Its totient is φ = 10122072.

The previous prime is 20244149. The next prime is 20244157. The reversal of 20244152 is 25144202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265252 + ... + 1265267.

It is an arithmetic number, because the mean of its divisors is an integer number (4744725).

Almost surely, 2^20244152 is an apocalyptic number.

It is an amenable number.

20244152 is a deficient number, since it is larger than the sum of its proper divisors (17713648).

20244152 is a wasteful number, since it uses less digits than its factorization.

20244152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530525 (or 2530521 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20244152 is about 4499.3501753031. The cubic root of 20244152 is about 272.5418480746.

Adding to 20244152 its reverse (25144202), we get a palindrome (45388354).

The spelling of 20244152 in words is "twenty million, two hundred forty-four thousand, one hundred fifty-two".