224013444 has 12 divisors (see below), whose sum is σ = 522698064. Its totient is φ = 74671144.

The previous prime is 224013397. The next prime is 224013467. The reversal of 224013444 is 444310422.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×224013444² = 100364046185482272, which contains 22 as substring.

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, 9333882 + ... + 9333905.

It is an arithmetic number, because the mean of its divisors is an integer number (43558172).

Almost surely, 2^224013444 is an apocalyptic number.

It is an amenable number.

224013444 is an abundant number, since it is smaller than the sum of its proper divisors (298684620).

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

224013444 is a wasteful number, since it uses less digits than its factorization.

224013444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18667794 (or 18667792 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 224013444 is about 14967.0786728740. The cubic root of 224013444 is about 607.3299441029.

Adding to 224013444 its reverse (444310422), we get a palindrome (668323866).

The spelling of 224013444 in words is "two hundred twenty-four million, thirteen thousand, four hundred forty-four".