48639980 has 12 divisors (see below), whose sum is σ = 102144000. Its totient is φ = 19455984.

The previous prime is 48639979. The next prime is 48640001. The reversal of 48639980 is 8993684.

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, 1215980 + ... + 1216019.

It is an arithmetic number, because the mean of its divisors is an integer number (8512000).

Almost surely, 2^48639980 is an apocalyptic number.

It is an amenable number.

48639980 is an abundant number, since it is smaller than the sum of its proper divisors (53504020).

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

48639980 is a wasteful number, since it uses less digits than its factorization.

48639980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432008 (or 2432006 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 48639980 is about 6974.2368758166. The cubic root of 48639980 is about 365.0321607991.

The spelling of 48639980 in words is "forty-eight million, six hundred thirty-nine thousand, nine hundred eighty".