63418340 has 24 divisors (see below), whose sum is σ = 133955640. Its totient is φ = 25219328.

The previous prime is 63418297. The next prime is 63418363. The reversal of 63418340 is 4381436.

It can be written as a sum of positive squares in 4 ways, for example, as 17909824 + 45508516 = 4232^2 + 6746^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5705 + ... + 12624.

It is an arithmetic number, because the mean of its divisors is an integer number (5581485).

Almost surely, 2^63418340 is an apocalyptic number.

It is an amenable number.

63418340 is an abundant number, since it is smaller than the sum of its proper divisors (70537300).

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

63418340 is a wasteful number, since it uses less digits than its factorization.

63418340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18511 (or 18509 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 63418340 is about 7963.5632728070. The cubic root of 63418340 is about 398.7845185868.

Adding to 63418340 its reverse (4381436), we get a palindrome (67799776).

The spelling of 63418340 in words is "sixty-three million, four hundred eighteen thousand, three hundred forty".