63427220 has 36 divisors (see below), whose sum is σ = 135877980. Its totient is φ = 24870144.

The previous prime is 63427201. The next prime is 63427237. The reversal of 63427220 is 2272436.

It can be written as a sum of positive squares in 6 ways, for example, as 478864 + 62948356 = 692^2 + 7934^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63427220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55616 + ... + 56744.

Almost surely, 2^63427220 is an apocalyptic number.

It is an amenable number.

63427220 is an abundant number, since it is smaller than the sum of its proper divisors (72450760).

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

63427220 is a wasteful number, since it uses less digits than its factorization.

63427220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 63427220 is about 7964.1207926550. The cubic root of 63427220 is about 398.8031306647.

Adding to 63427220 its reverse (2272436), we get a palindrome (65699656).

The spelling of 63427220 in words is "sixty-three million, four hundred twenty-seven thousand, two hundred twenty".