20144024 has 8 divisors (see below), whose sum is σ = 37770060. Its totient is φ = 10072008.

The previous prime is 20144023. The next prime is 20144027. The reversal of 20144024 is 42044102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20143993 and 20144011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258994 + ... + 1259009.

Almost surely, 2^20144024 is an apocalyptic number.

It is an amenable number.

20144024 is a deficient number, since it is larger than the sum of its proper divisors (17626036).

20144024 is a wasteful number, since it uses less digits than its factorization.

20144024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518009 (or 2518005 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 20144024 is about 4488.2094425283. The cubic root of 20144024 is about 272.0917726657.

Adding to 20144024 its reverse (42044102), we get a palindrome (62188126).

The spelling of 20144024 in words is "twenty million, one hundred forty-four thousand, twenty-four".