43843680 has 240 divisors, whose sum is σ = 164656800. Its totient is φ = 10948608.

The previous prime is 43843669. The next prime is 43843693. The reversal of 43843680 is 8634834.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 220221 + ... + 220419.

It is an arithmetic number, because the mean of its divisors is an integer number (686070).

Almost surely, 2^43843680 is an apocalyptic number.

43843680 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 43843680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82328400).

43843680 is an abundant number, since it is smaller than the sum of its proper divisors (120813120).

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

43843680 is a wasteful number, since it uses less digits than its factorization.

43843680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 43843680 is about 6621.4560332302. The cubic root of 43843680 is about 352.6162586193.

It can be divided in two parts, 438436 and 80, that added together give a triangular number (438516 = T₉₃₆).

The spelling of 43843680 in words is "forty-three million, eight hundred forty-three thousand, six hundred eighty".