63438384 has 20 divisors (see below), whose sum is σ = 163882616. Its totient is φ = 21146112.

The previous prime is 63438337. The next prime is 63438409. The reversal of 63438384 is 48383436.

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

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660769 + ... + 660864.

Almost surely, 2^63438384 is an apocalyptic number.

It is an amenable number.

63438384 is an abundant number, since it is smaller than the sum of its proper divisors (100444232).

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

63438384 is a wasteful number, since it uses less digits than its factorization.

63438384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321644 (or 1321638 counting only the distinct ones).

The product of its digits is 165888, while the sum is 39.

The square root of 63438384 is about 7964.8216552538. The cubic root of 63438384 is about 398.8265274385.

The spelling of 63438384 in words is "sixty-three million, four hundred thirty-eight thousand, three hundred eighty-four".