43554042 has 144 divisors (see below), whose sum is σ = 121642560. Its totient is φ = 11176704.

The previous prime is 43554031. The next prime is 43554073. The reversal of 43554042 is 24045534.

43554042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 43553997 and 43554015.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 385378 + ... + 385490.

It is an arithmetic number, because the mean of its divisors is an integer number (844740).

Almost surely, 2^43554042 is an apocalyptic number.

43554042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 43554042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60821280).

43554042 is an abundant number, since it is smaller than the sum of its proper divisors (78088518).

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

43554042 is a wasteful number, since it uses less digits than its factorization.

43554042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 43554042 is about 6599.5486209286. The cubic root of 43554042 is about 351.8380636416.

Adding to 43554042 its reverse (24045534), we get a palindrome (67599576).

The spelling of 43554042 in words is "forty-three million, five hundred fifty-four thousand, forty-two".