43869648 has 80 divisors (see below), whose sum is σ = 119992320. Its totient is φ = 13782912.

The previous prime is 43869647. The next prime is 43869677. The reversal of 43869648 is 84696834.

43869648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 43869597 and 43869606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43869641) by changing a digit.

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, 86965 + ... + 87467.

It is an arithmetic number, because the mean of its divisors is an integer number (1499904).

Almost surely, 2^43869648 is an apocalyptic number.

43869648 is a gapful number since it is divisible by the number (48) 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 43869648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59996160).

43869648 is an abundant number, since it is smaller than the sum of its proper divisors (76122672).

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

43869648 is a wasteful number, since it uses less digits than its factorization.

43869648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 610 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The square root of 43869648 is about 6623.4166409792. The cubic root of 43869648 is about 352.6858614430.

The spelling of 43869648 in words is "forty-three million, eight hundred sixty-nine thousand, six hundred forty-eight".