20224624 has 40 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 8626368.

The previous prime is 20224621. The next prime is 20224651. The reversal of 20224624 is 42642202.

It is a junction number, because it is equal to n+sod(n) for n = 20224595 and 20224604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224621) 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 7 ways as a sum of consecutive naturals, for example, 39957 + ... + 40459.

It is an arithmetic number, because the mean of its divisors is an integer number (1124928).

Almost surely, 2^20224624 is an apocalyptic number.

It is an amenable number.

20224624 is an abundant number, since it is smaller than the sum of its proper divisors (24772496).

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

20224624 is a wasteful number, since it uses less digits than its factorization.

20224624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20224624 is about 4497.1795605690. The cubic root of 20224624 is about 272.4541863895.

Adding to 20224624 its reverse (42642202), we get a palindrome (62866826).

The spelling of 20224624 in words is "twenty million, two hundred twenty-four thousand, six hundred twenty-four".