63924228 has 30 divisors (see below), whose sum is σ = 167111406. Its totient is φ = 21307968.

The previous prime is 63924221. The next prime is 63924229. The reversal of 63924228 is 82242936.

It can be written as a sum of positive squares in only one way, i.e., 38340864 + 25583364 = 6192^2 + 5058^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 63924192 and 63924201.

It is not an unprimeable number, because it can be changed into a prime (63924221) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 98325 + ... + 98972.

Almost surely, 2^63924228 is an apocalyptic number.

It is an amenable number.

63924228 is an abundant number, since it is smaller than the sum of its proper divisors (103187178).

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

63924228 is a wasteful number, since it uses less digits than its factorization.

63924228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197313 (or 197302 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 63924228 is about 7995.2628474616. The cubic root of 63924228 is about 399.8420793275.

The spelling of 63924228 in words is "sixty-three million, nine hundred twenty-four thousand, two hundred twenty-eight".