63339840 has 112 divisors (see below), whose sum is σ = 223479360. Its totient is φ = 16888320.

The previous prime is 63339839. The next prime is 63339869. The reversal of 63339840 is 4893336.

63339840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 63339795 and 63339804.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4975 + ... + 12305.

Almost surely, 2^63339840 is an apocalyptic number.

63339840 is a gapful number since it is divisible by the number (60) 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 63339840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111739680).

63339840 is an abundant number, since it is smaller than the sum of its proper divisors (160139520).

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

63339840 is a wasteful number, since it uses less digits than its factorization.

63339840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357 (or 7341 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 63339840 is about 7958.6330484575. The cubic root of 63339840 is about 398.6199105255.

The spelling of 63339840 in words is "sixty-three million, three hundred thirty-nine thousand, eight hundred forty".