43041985 has 16 divisors (see below), whose sum is σ = 59141376. Its totient is φ = 29458368.

The previous prime is 43041983. The next prime is 43041991. The reversal of 43041985 is 58914034.

It is a cyclic number.

It is not a de Polignac number, because 43041985 - 2¹ = 43041983 is a prime.

It is a super-2 number, since 2×43041985² = 3705224945480450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43041985.

It is not an unprimeable number, because it can be changed into a prime (43041983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27124 + ... + 28666.

It is an arithmetic number, because the mean of its divisors is an integer number (3696336).

Almost surely, 2^43041985 is an apocalyptic number.

It is an amenable number.

43041985 is a deficient number, since it is larger than the sum of its proper divisors (16099391).

43041985 is a wasteful number, since it uses less digits than its factorization.

43041985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 43041985 is about 6560.6390694810. The cubic root of 43041985 is about 350.4537923339.

The spelling of 43041985 in words is "forty-three million, forty-one thousand, nine hundred eighty-five".