43473138 has 8 divisors (see below), whose sum is σ = 86946288. Its totient is φ = 14491044.

The previous prime is 43473119. The next prime is 43473173. The reversal of 43473138 is 83137434.

It is a sphenic number, since it is the product of 3 distinct primes.

43473138 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 43473099 and 43473108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3622756 + ... + 3622767.

It is an arithmetic number, because the mean of its divisors is an integer number (10868286).

Almost surely, 2^43473138 is an apocalyptic number.

43473138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

43473138 is a wasteful number, since it uses less digits than its factorization.

43473138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245528.

The product of its digits is 24192, while the sum is 33.

The square root of 43473138 is about 6593.4162616962. The cubic root of 43473138 is about 351.6200758364.

The spelling of 43473138 in words is "forty-three million, four hundred seventy-three thousand, one hundred thirty-eight".