63331380 has 72 divisors (see below), whose sum is σ = 219553152. Its totient is φ = 14475456.

The previous prime is 63331349. The next prime is 63331381. The reversal of 63331380 is 8313336.

63331380 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 (63331381) 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 23 ways as a sum of consecutive naturals, for example, 23872 + ... + 26391.

Almost surely, 2^63331380 is an apocalyptic number.

63331380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63331380 is an abundant number, since it is smaller than the sum of its proper divisors (156221772).

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

63331380 is a wasteful number, since it uses less digits than its factorization.

63331380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50285 (or 50280 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 63331380 is about 7958.1015324008. The cubic root of 63331380 is about 398.6021624826.

The spelling of 63331380 in words is "sixty-three million, three hundred thirty-one thousand, three hundred eighty".