48239840 has 48 divisors (see below), whose sum is σ = 124331760. Its totient is φ = 17541120.

The previous prime is 48239801. The next prime is 48239843. The reversal of 48239840 is 4893284.

It is a junction number, because it is equal to n+sod(n) for n = 48239794 and 48239803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48239843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11945 + ... + 15464.

It is an arithmetic number, because the mean of its divisors is an integer number (2590245).

Almost surely, 2^48239840 is an apocalyptic number.

48239840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48239840 is an abundant number, since it is smaller than the sum of its proper divisors (76091920).

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

48239840 is a wasteful number, since it uses less digits than its factorization.

48239840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27435 (or 27427 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 48239840 is about 6945.4906234189. The cubic root of 48239840 is about 364.0284162496.

The spelling of 48239840 in words is "forty-eight million, two hundred thirty-nine thousand, eight hundred forty".