63430420 has 12 divisors (see below), whose sum is σ = 133203924. Its totient is φ = 25372160.

The previous prime is 63430399. The next prime is 63430421. The reversal of 63430420 is 2403436.

It can be written as a sum of positive squares in 2 ways, for example, as 10023556 + 53406864 = 3166^2 + 7308^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63430391 and 63430400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63430421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1585741 + ... + 1585780.

It is an arithmetic number, because the mean of its divisors is an integer number (11100327).

Almost surely, 2^63430420 is an apocalyptic number.

It is an amenable number.

63430420 is an abundant number, since it is smaller than the sum of its proper divisors (69773504).

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

63430420 is a wasteful number, since it uses less digits than its factorization.

63430420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171530 (or 3171528 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 63430420 is about 7964.3216911423. The cubic root of 63430420 is about 398.8098372940.

Adding to 63430420 its reverse (2403436), we get a palindrome (65833856).

The spelling of 63430420 in words is "sixty-three million, four hundred thirty thousand, four hundred twenty".