43085428 has 12 divisors (see below), whose sum is σ = 75724740. Its totient is φ = 21449792.

The previous prime is 43085423. The next prime is 43085437. The reversal of 43085428 is 82458034.

43085428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30891364 + 12194064 = 5558^2 + 3492^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43085393 and 43085402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43085423) 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 3 ways as a sum of consecutive naturals, for example, 22183 + ... + 24046.

It is an arithmetic number, because the mean of its divisors is an integer number (6310395).

Almost surely, 2^43085428 is an apocalyptic number.

It is an amenable number.

43085428 is a deficient number, since it is larger than the sum of its proper divisors (32639312).

43085428 is a wasteful number, since it uses less digits than its factorization.

43085428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46466 (or 46464 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 43085428 is about 6563.9491161952. The cubic root of 43085428 is about 350.5716589918.

It can be divided in two parts, 430 and 85428, that added together give a palindrome (85858).

The spelling of 43085428 in words is "forty-three million, eighty-five thousand, four hundred twenty-eight".