63945360 has 60 divisors (see below), whose sum is σ = 214752252. Its totient is φ = 17051904.

The previous prime is 63945341. The next prime is 63945367. The reversal of 63945360 is 6354936.

It can be written as a sum of positive squares in 2 ways, for example, as 50637456 + 13307904 = 7116^2 + 3648^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (63945367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43687 + ... + 45126.

Almost surely, 2^63945360 is an apocalyptic number.

63945360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63945360 is an abundant number, since it is smaller than the sum of its proper divisors (150806892).

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

63945360 is a wasteful number, since it uses less digits than its factorization.

63945360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88832 (or 88823 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 63945360 is about 7996.5842707996. The cubic root of 63945360 is about 399.8861342562.

The spelling of 63945360 in words is "sixty-three million, nine hundred forty-five thousand, three hundred sixty".