43830138 has 32 divisors (see below), whose sum is σ = 96292800. Its totient is φ = 13189760.

The previous prime is 43830133. The next prime is 43830139. The reversal of 43830138 is 83103834.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43830133) 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, 7606 + ... + 12062.

It is an arithmetic number, because the mean of its divisors is an integer number (3009150).

Almost surely, 2^43830138 is an apocalyptic number.

43830138 is an abundant number, since it is smaller than the sum of its proper divisors (52462662).

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

43830138 is a wasteful number, since it uses less digits than its factorization.

43830138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 43830138 is about 6620.4333695008. The cubic root of 43830138 is about 352.5799506794.

The spelling of 43830138 in words is "forty-three million, eight hundred thirty thousand, one hundred thirty-eight".