43430085 has 12 divisors (see below), whose sum is σ = 75278892. Its totient is φ = 23162688.

The previous prime is 43430083. The next prime is 43430089. The reversal of 43430085 is 58003434.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8749764 + 34680321 = 2958^2 + 5889^2 .

It is not a de Polignac number, because 43430085 - 2¹ = 43430083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43430083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 482512 + ... + 482601.

It is an arithmetic number, because the mean of its divisors is an integer number (6273241).

Almost surely, 2^43430085 is an apocalyptic number.

43430085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43430085 is a deficient number, since it is larger than the sum of its proper divisors (31848807).

43430085 is a wasteful number, since it uses less digits than its factorization.

43430085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965124 (or 965121 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 43430085 is about 6590.1506052593. The cubic root of 43430085 is about 351.5039635281.

It can be divided in two parts, 43 and 430085, that added together give a triangular number (430128 = T₉₂₇).

The spelling of 43430085 in words is "forty-three million, four hundred thirty thousand, eighty-five".