20144532 has 12 divisors (see below), whose sum is σ = 47003936. Its totient is φ = 6714840.

The previous prime is 20144521. The next prime is 20144549. The reversal of 20144532 is 23544102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20144499 and 20144508.

It is a congruent number.

It is an unprimeable number.

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, 839344 + ... + 839367.

Almost surely, 2^20144532 is an apocalyptic number.

It is an amenable number.

20144532 is an abundant number, since it is smaller than the sum of its proper divisors (26859404).

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

20144532 is a wasteful number, since it uses less digits than its factorization.

20144532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678718 (or 1678716 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20144532 is about 4488.2660348959. The cubic root of 20144532 is about 272.0940598859.

Adding to 20144532 its reverse (23544102), we get a palindrome (43688634).

The spelling of 20144532 in words is "twenty million, one hundred forty-four thousand, five hundred thirty-two".