20144412 has 36 divisors (see below), whose sum is σ = 53136720. Its totient is φ = 6422592.

The previous prime is 20144387. The next prime is 20144417. The reversal of 20144412 is 21444102.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144417) 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 11 ways as a sum of consecutive naturals, for example, 11337 + ... + 12992.

It is an arithmetic number, because the mean of its divisors is an integer number (1476020).

Almost surely, 2^20144412 is an apocalyptic number.

It is an amenable number.

20144412 is an abundant number, since it is smaller than the sum of its proper divisors (32992308).

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

20144412 is a wasteful number, since it uses less digits than its factorization.

20144412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24362 (or 24357 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 20144412 is about 4488.2526666844. The cubic root of 20144412 is about 272.0935196012.

Adding to 20144412 its reverse (21444102), we get a palindrome (41588514).

The spelling of 20144412 in words is "twenty million, one hundred forty-four thousand, four hundred twelve".