63217240 has 16 divisors (see below), whose sum is σ = 142238880. Its totient is φ = 25286880.

The previous prime is 63217223. The next prime is 63217241. The reversal of 63217240 is 4271236.

63217240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63217241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790176 + ... + 790255.

It is an arithmetic number, because the mean of its divisors is an integer number (8889930).

Almost surely, 2^63217240 is an apocalyptic number.

It is an amenable number.

63217240 is an abundant number, since it is smaller than the sum of its proper divisors (79021640).

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

63217240 is a wasteful number, since it uses less digits than its factorization.

63217240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580442 (or 1580438 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 63217240 is about 7950.9269899805. The cubic root of 63217240 is about 398.3625560902.

Adding to 63217240 its reverse (4271236), we get a palindrome (67488476).

The spelling of 63217240 in words is "sixty-three million, two hundred seventeen thousand, two hundred forty".