63730944 has 108 divisors (see below), whose sum is σ = 186004000. Its totient is φ = 20984832.

The previous prime is 63730939. The next prime is 63730957. The reversal of 63730944 is 44903736.

It is a super-2 number, since 2×63730944² = 8123266446262272, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 63730899 and 63730908.

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 11 ways as a sum of consecutive naturals, for example, 320157 + ... + 320355.

Almost surely, 2^63730944 is an apocalyptic number.

63730944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63730944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93002000).

63730944 is an abundant number, since it is smaller than the sum of its proper divisors (122273056).

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

63730944 is a wasteful number, since it uses less digits than its factorization.

63730944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 63730944 is about 7983.1662891362. The cubic root of 63730944 is about 399.4386793329.

The spelling of 63730944 in words is "sixty-three million, seven hundred thirty thousand, nine hundred forty-four".