43055320 has 96 divisors (see below), whose sum is σ = 122996880. Its totient is φ = 13413120.

The previous prime is 43055303. The next prime is 43055321. The reversal of 43055320 is 2355034.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 43055291 and 43055300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43055321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20562 + ... + 22558.

Almost surely, 2^43055320 is an apocalyptic number.

43055320 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 43055320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61498440).

43055320 is an abundant number, since it is smaller than the sum of its proper divisors (79941560).

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

43055320 is a wasteful number, since it uses less digits than its factorization.

43055320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033 (or 2022 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 43055320 is about 6561.6552789673. The cubic root of 43055320 is about 350.4899804014.

The spelling of 43055320 in words is "forty-three million, fifty-five thousand, three hundred twenty".