638714060 has 24 divisors (see below), whose sum is σ = 1345598016. Its totient is φ = 254666880.

The previous prime is 638714059. The next prime is 638714119. The reversal of 638714060 is 60417836.

It is a self number, because there is not a number n which added to its sum of digits gives 638714060.

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, 44756 + ... + 57275.

It is an arithmetic number, because the mean of its divisors is an integer number (56066584).

Almost surely, 2^638714060 is an apocalyptic number.

It is an amenable number.

638714060 is an abundant number, since it is smaller than the sum of its proper divisors (706883956).

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

638714060 is a wasteful number, since it uses less digits than its factorization.

638714060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102353 (or 102351 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 638714060 is about 25272.7928808828. The cubic root of 638714060 is about 861.1963069767.

The spelling of 638714060 in words is "six hundred thirty-eight million, seven hundred fourteen thousand, sixty".