638922482 has 16 divisors (see below), whose sum is σ = 1046757600. Its totient is φ = 290072640.

The previous prime is 638922467. The next prime is 638922491. The reversal of 638922482 is 284229836.

638922482 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1994 + ... + 35802.

It is an arithmetic number, because the mean of its divisors is an integer number (65422350).

Almost surely, 2^638922482 is an apocalyptic number.

638922482 is a deficient number, since it is larger than the sum of its proper divisors (407835118).

638922482 is a wasteful number, since it uses less digits than its factorization.

638922482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34681.

The product of its digits is 331776, while the sum is 44.

The square root of 638922482 is about 25276.9159906821. The cubic root of 638922482 is about 861.2899705568.

The spelling of 638922482 in words is "six hundred thirty-eight million, nine hundred twenty-two thousand, four hundred eighty-two".