63224740 has 12 divisors (see below), whose sum is σ = 132771996. Its totient is φ = 25289888.

The previous prime is 63224713. The next prime is 63224741. The reversal of 63224740 is 4742236.

It can be written as a sum of positive squares in 2 ways, for example, as 47032164 + 16192576 = 6858^2 + 4024^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63224699 and 63224708.

It is not an unprimeable number, because it can be changed into a prime (63224741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1580599 + ... + 1580638.

It is an arithmetic number, because the mean of its divisors is an integer number (11064333).

Almost surely, 2^63224740 is an apocalyptic number.

It is an amenable number.

63224740 is an abundant number, since it is smaller than the sum of its proper divisors (69547256).

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

63224740 is a wasteful number, since it uses less digits than its factorization.

63224740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161246 (or 3161244 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 63224740 is about 7951.3986191110. The cubic root of 63224740 is about 398.3783091823.

Adding to 63224740 its reverse (4742236), we get a palindrome (67966976).

The spelling of 63224740 in words is "sixty-three million, two hundred twenty-four thousand, seven hundred forty".