63434520 has 48 divisors (see below), whose sum is σ = 206163360. Its totient is φ = 16915776.

The previous prime is 63434479. The next prime is 63434533. The reversal of 63434520 is 2543436.

63434520 is a `hidden beast` number, since 634 + 3 + 4 + 5 + 20 = 666.

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, 87744 + ... + 88463.

It is an arithmetic number, because the mean of its divisors is an integer number (4295070).

Almost surely, 2^63434520 is an apocalyptic number.

63434520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63434520 is an abundant number, since it is smaller than the sum of its proper divisors (142728840).

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

63434520 is a wasteful number, since it uses less digits than its factorization.

63434520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176224 (or 176217 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 63434520 is about 7964.5790849234. The cubic root of 63434520 is about 398.8184298332.

Adding to 63434520 its reverse (2543436), we get a palindrome (65977956).

The spelling of 63434520 in words is "sixty-three million, four hundred thirty-four thousand, five hundred twenty".