48639540 has 24 divisors (see below), whose sum is σ = 136190880. Its totient is φ = 12970528.

The previous prime is 48639511. The next prime is 48639557. The reversal of 48639540 is 4593684.

48639540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 405270 + ... + 405389.

It is an arithmetic number, because the mean of its divisors is an integer number (5674620).

Almost surely, 2^48639540 is an apocalyptic number.

It is an amenable number.

48639540 is an abundant number, since it is smaller than the sum of its proper divisors (87551340).

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

48639540 is a wasteful number, since it uses less digits than its factorization.

48639540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810671 (or 810669 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 48639540 is about 6974.2053310754. The cubic root of 48639540 is about 365.0310600953.

The spelling of 48639540 in words is "forty-eight million, six hundred thirty-nine thousand, five hundred forty".