63381384 has 96 divisors (see below), whose sum is σ = 189820800. Its totient is φ = 18944640.

The previous prime is 63381377. The next prime is 63381403. The reversal of 63381384 is 48318336.

It is a happy number.

63381384 is a `hidden beast` number, since 633 + 8 + 13 + 8 + 4 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62062 + ... + 63074.

It is an arithmetic number, because the mean of its divisors is an integer number (1977300).

Almost surely, 2^63381384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63381384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94910400).

63381384 is an abundant number, since it is smaller than the sum of its proper divisors (126439416).

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

63381384 is a wasteful number, since it uses less digits than its factorization.

63381384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1108 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 63381384 is about 7961.2426165769. The cubic root of 63381384 is about 398.7070418176.

The spelling of 63381384 in words is "sixty-three million, three hundred eighty-one thousand, three hundred eighty-four".