224533540 has 96 divisors (see below), whose sum is σ = 591510528. Its totient is φ = 69552000.

The previous prime is 224533531. The next prime is 224533541. The reversal of 224533540 is 45335422.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 224533499 and 224533508.

It is not an unprimeable number, because it can be changed into a prime (224533541) 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 31 ways as a sum of consecutive naturals, for example, 324595 + ... + 325285.

It is an arithmetic number, because the mean of its divisors is an integer number (6161568).

Almost surely, 2^224533540 is an apocalyptic number.

224533540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224533540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295755264).

224533540 is an abundant number, since it is smaller than the sum of its proper divisors (366976988).

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

224533540 is a wasteful number, since it uses less digits than its factorization.

224533540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 224533540 is about 14984.4432662679. The cubic root of 224533540 is about 607.7995970699.

Adding to 224533540 its reverse (45335422), we get a palindrome (269868962).

It can be divided in two parts, 2 and 24533540, that added together give a palindrome (24533542).

The spelling of 224533540 in words is "two hundred twenty-four million, five hundred thirty-three thousand, five hundred forty".