20242224 has 50 divisors (see below), whose sum is σ = 58590620. Its totient is φ = 6746976.

The previous prime is 20242213. The next prime is 20242247. The reversal of 20242224 is 42224202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20242197 and 20242206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6514 + ... + 9105.

Almost surely, 2^20242224 is an apocalyptic number.

20242224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20242224 is an abundant number, since it is smaller than the sum of its proper divisors (38348396).

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

20242224 is a wasteful number, since it uses less digits than its factorization.

20242224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15639 (or 15624 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 20242224 is about 4499.1359170401. The cubic root of 20242224 is about 272.5331957427.

Adding to 20242224 its reverse (42224202), we get a palindrome (62466426).

The spelling of 20242224 in words is "twenty million, two hundred forty-two thousand, two hundred twenty-four".