63180640 has 24 divisors (see below), whose sum is σ = 149264640. Its totient is φ = 25272192.

The previous prime is 63180587. The next prime is 63180661. The reversal of 63180640 is 4608136.

It is a junction number, because it is equal to n+sod(n) for n = 63180599 and 63180608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197280 + ... + 197599.

It is an arithmetic number, because the mean of its divisors is an integer number (6219360).

Almost surely, 2^63180640 is an apocalyptic number.

It is an amenable number.

63180640 is an abundant number, since it is smaller than the sum of its proper divisors (86084000).

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

63180640 is a wasteful number, since it uses less digits than its factorization.

63180640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394894 (or 394886 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 63180640 is about 7948.6250383321. The cubic root of 63180640 is about 398.2856631192.

Adding to 63180640 its reverse (4608136), we get a palindrome (67788776).

The spelling of 63180640 in words is "sixty-three million, one hundred eighty thousand, six hundred forty".