20144824 has 32 divisors (see below), whose sum is σ = 43315200. Its totient is φ = 8604000.

The previous prime is 20144819. The next prime is 20144833. The reversal of 20144824 is 42844102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26449 + ... + 27199.

It is an arithmetic number, because the mean of its divisors is an integer number (1353600).

Almost surely, 2^20144824 is an apocalyptic number.

It is an amenable number.

20144824 is an abundant number, since it is smaller than the sum of its proper divisors (23170376).

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

20144824 is a wasteful number, since it uses less digits than its factorization.

20144824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 20144824 is about 4488.2985640441. The cubic root of 20144824 is about 272.0953745699.

Adding to 20144824 its reverse (42844102), we get a palindrome (62988926).

The spelling of 20144824 in words is "twenty million, one hundred forty-four thousand, eight hundred twenty-four".