638062332 has 24 divisors (see below), whose sum is σ = 1567171200. Its totient is φ = 201493296.

The previous prime is 638062319. The next prime is 638062357. The reversal of 638062332 is 233260836.

It is a junction number, because it is equal to n+sod(n) for n = 638062293 and 638062302.

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 7 ways as a sum of consecutive naturals, for example, 1399032 + ... + 1399487.

It is an arithmetic number, because the mean of its divisors is an integer number (65298800).

Almost surely, 2^638062332 is an apocalyptic number.

It is an amenable number.

638062332 is an abundant number, since it is smaller than the sum of its proper divisors (929108868).

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

638062332 is a wasteful number, since it uses less digits than its factorization.

638062332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798545 (or 2798543 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 638062332 is about 25259.8957242503. The cubic root of 638062332 is about 860.9032928353.

The spelling of 638062332 in words is "six hundred thirty-eight million, sixty-two thousand, three hundred thirty-two".