63630220 has 24 divisors (see below), whose sum is σ = 134142624. Its totient is φ = 25353216.

The previous prime is 63630211. The next prime is 63630223. The reversal of 63630220 is 2203636.

It is a junction number, because it is equal to n+sod(n) for n = 63630191 and 63630200.

It is not an unprimeable number, because it can be changed into a prime (63630223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789 + ... + 11308.

It is an arithmetic number, because the mean of its divisors is an integer number (5589276).

Almost surely, 2^63630220 is an apocalyptic number.

It is an amenable number.

63630220 is an abundant number, since it is smaller than the sum of its proper divisors (70512404).

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

63630220 is a wasteful number, since it uses less digits than its factorization.

63630220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12369 (or 12367 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 63630220 is about 7976.8552700923. The cubic root of 63630220 is about 399.2281365250.

Adding to 63630220 its reverse (2203636), we get a palindrome (65833856).

The spelling of 63630220 in words is "sixty-three million, six hundred thirty thousand, two hundred twenty".