20224442 has 16 divisors (see below), whose sum is σ = 35016192. Its totient is φ = 8581200.

The previous prime is 20224423. The next prime is 20224447. The reversal of 20224442 is 24442202.

It is a super-2 number, since 2×20224442² = 818056108422728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20224447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5738 + ... + 8565.

It is an arithmetic number, because the mean of its divisors is an integer number (2188512).

Almost surely, 2^20224442 is an apocalyptic number.

20224442 is a deficient number, since it is larger than the sum of its proper divisors (14791750).

20224442 is a wasteful number, since it uses less digits than its factorization.

20224442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14413.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 20224442 is about 4497.1593256188. The cubic root of 20224442 is about 272.4533691216.

Adding to 20224442 its reverse (24442202), we get a palindrome (44666644).

It can be divided in two parts, 202 and 24442, that multiplied together give a square (4937284 = 2222²).

The spelling of 20224442 in words is "twenty million, two hundred twenty-four thousand, four hundred forty-two".