43868928 has 54 divisors (see below), whose sum is σ = 117245884. Its totient is φ = 14561792.

The previous prime is 43868921. The next prime is 43868933. The reversal of 43868928 is 82986834.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (43868921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 183433 + ... + 183671.

Almost surely, 2^43868928 is an apocalyptic number.

43868928 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 43868928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58622942).

43868928 is an abundant number, since it is smaller than the sum of its proper divisors (73376956).

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

43868928 is an frugal number, since it uses more digits than its factorization.

43868928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 244 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 43868928 is about 6623.3622881434. The cubic root of 43868928 is about 352.6839319753.

Multiplying 43868928 by its sum of digits (48), we get a square (2105708544 = 45888²).

43868928 divided by its sum of digits (48) gives a square (913936 = 956²).

The spelling of 43868928 in words is "forty-three million, eight hundred sixty-eight thousand, nine hundred twenty-eight".