43090 has 16 divisors (see below), whose sum is σ = 80640. Its totient is φ = 16560.

The previous prime is 43067. The next prime is 43093. The reversal of 43090 is 9034.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 14.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 43090.

It is not an unprimeable number, because it can be changed into a prime (43093) by changing a digit.

43090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241 + ... + 379.

It is an arithmetic number, because the mean of its divisors is an integer number (5040).

2⁴³⁰⁹⁰ is an apocalyptic number.

43090 is a deficient number, since it is larger than the sum of its proper divisors (37550).

43090 is a wasteful number, since it uses less digits than its factorization.

43090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 43090 is about 207.5813093706. The cubic root of 43090 is about 35.0584058829.

The spelling of 43090 in words is "forty-three thousand, ninety".