63381224 has 8 divisors (see below), whose sum is σ = 118839810. Its totient is φ = 31690608.

The previous prime is 63381223. The next prime is 63381229. The reversal of 63381224 is 42218336.

It can be written as a sum of positive squares in only one way, i.e., 59013124 + 4368100 = 7682^2 + 2090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (63381223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3961319 + ... + 3961334.

Almost surely, 2^63381224 is an apocalyptic number.

It is an amenable number.

63381224 is a deficient number, since it is larger than the sum of its proper divisors (55458586).

63381224 is a wasteful number, since it uses less digits than its factorization.

63381224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7922659 (or 7922655 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 63381224 is about 7961.2325678880. The cubic root of 63381224 is about 398.7067063186.

The spelling of 63381224 in words is "sixty-three million, three hundred eighty-one thousand, two hundred twenty-four".