43055420 has 48 divisors (see below), whose sum is σ = 94112928. Its totient is φ = 16531200.

The previous prime is 43055399. The next prime is 43055429. The reversal of 43055420 is 2455034.

43055420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×43055420³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43055429) 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, 61070 + ... + 61770.

It is an arithmetic number, because the mean of its divisors is an integer number (1960686).

Almost surely, 2^43055420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43055420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47056464).

43055420 is an abundant number, since it is smaller than the sum of its proper divisors (51057508).

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

43055420 is a wasteful number, since it uses less digits than its factorization.

43055420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 43055420 is about 6561.6628989914. The cubic root of 43055420 is about 350.4902517498.

The spelling of 43055420 in words is "forty-three million, fifty-five thousand, four hundred twenty".