48989640 has 64 divisors (see below), whose sum is σ = 167967360. Its totient is φ = 11197440.

The previous prime is 48989639. The next prime is 48989659. The reversal of 48989640 is 4698984.

48989640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 48989640.

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 15 ways as a sum of consecutive naturals, for example, 28321 + ... + 30000.

It is an arithmetic number, because the mean of its divisors is an integer number (2624490).

Almost surely, 2^48989640 is an apocalyptic number.

48989640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48989640 is an abundant number, since it is smaller than the sum of its proper divisors (118977720).

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

48989640 is a wasteful number, since it uses less digits than its factorization.

48989640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58342 (or 58338 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 48989640 is about 6999.2599608816. The cubic root of 48989640 is about 365.9047797919.

The spelling of 48989640 in words is "forty-eight million, nine hundred eighty-nine thousand, six hundred forty".