43872540 has 24 divisors (see below), whose sum is σ = 122843280. Its totient is φ = 11699328.

The previous prime is 43872527. The next prime is 43872559. The reversal of 43872540 is 4527834.

43872540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×43872540³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 365545 + ... + 365664.

It is an arithmetic number, because the mean of its divisors is an integer number (5118470).

Almost surely, 2^43872540 is an apocalyptic number.

It is an amenable number.

43872540 is an abundant number, since it is smaller than the sum of its proper divisors (78970740).

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

43872540 is a wasteful number, since it uses less digits than its factorization.

43872540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731221 (or 731219 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 43872540 is about 6623.6349537093. The cubic root of 43872540 is about 352.6936112590.

The spelling of 43872540 in words is "forty-three million, eight hundred seventy-two thousand, five hundred forty".