48239440 has 40 divisors (see below), whose sum is σ = 113037408. Its totient is φ = 19144320.

The previous prime is 48239419. The next prime is 48239449. The reversal of 48239440 is 4493284.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 48239396 and 48239405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48239449) 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, 8179 + ... + 12781.

Almost surely, 2^48239440 is an apocalyptic number.

48239440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48239440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56518704).

48239440 is an abundant number, since it is smaller than the sum of its proper divisors (64797968).

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

48239440 is a wasteful number, since it uses less digits than its factorization.

48239440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4747 (or 4741 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 48239440 is about 6945.4618276973. The cubic root of 48239440 is about 364.0274100842.

The spelling of 48239440 in words is "forty-eight million, two hundred thirty-nine thousand, four hundred forty".