20220224 has 28 divisors (see below), whose sum is σ = 40357044. Its totient is φ = 10051584.

The previous prime is 20220217. The next prime is 20220247. The reversal of 20220224 is 42202202.

It can be written as a sum of positive squares in 2 ways, for example, as 2310400 + 17909824 = 1520^2 + 4232^2 .

It is a super-2 number, since 2×20220224² = 817714917220352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20220199 and 20220208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11534 + ... + 13170.

It is an arithmetic number, because the mean of its divisors is an integer number (1441323).

Almost surely, 2^20220224 is an apocalyptic number.

It is an amenable number.

20220224 is a deficient number, since it is larger than the sum of its proper divisors (20136820).

20220224 is a wasteful number, since it uses less digits than its factorization.

20220224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1832 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 20220224 is about 4496.6903384601. The cubic root of 20220224 is about 272.4344268896.

Adding to 20220224 its reverse (42202202), we get a palindrome (62422426).

The spelling of 20220224 in words is "twenty million, two hundred twenty thousand, two hundred twenty-four".