43872538 has 8 divisors (see below), whose sum is σ = 66791232. Its totient is φ = 21608796.

The previous prime is 43872527. The next prime is 43872559. The reversal of 43872538 is 83527834.

43872538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×43872538³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 43872538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163570 + ... + 163837.

It is an arithmetic number, because the mean of its divisors is an integer number (8348904).

Almost surely, 2^43872538 is an apocalyptic number.

43872538 is a deficient number, since it is larger than the sum of its proper divisors (22918694).

43872538 is a wasteful number, since it uses less digits than its factorization.

43872538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327476.

The product of its digits is 161280, while the sum is 40.

The square root of 43872538 is about 6623.6348027348. The cubic root of 43872538 is about 352.6936058997.

The spelling of 43872538 in words is "forty-three million, eight hundred seventy-two thousand, five hundred thirty-eight".