63450220 has 36 divisors (see below), whose sum is σ = 135010512. Its totient is φ = 25048000.

The previous prime is 63450209. The next prime is 63450221. The reversal of 63450220 is 2205436.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 63450191 and 63450200.

It is not an unprimeable number, because it can be changed into a prime (63450221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203865 + ... + 204175.

It is an arithmetic number, because the mean of its divisors is an integer number (3750292).

Almost surely, 2^63450220 is an apocalyptic number.

It is an amenable number.

63450220 is an abundant number, since it is smaller than the sum of its proper divisors (71560292).

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

63450220 is a wasteful number, since it uses less digits than its factorization.

63450220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 63450220 is about 7965.5646378647. The cubic root of 63450220 is about 398.8513295480.

Adding to 63450220 its reverse (2205436), we get a palindrome (65655656).

The spelling of 63450220 in words is "sixty-three million, four hundred fifty thousand, two hundred twenty".