43606540 has 48 divisors (see below), whose sum is σ = 93915360. Its totient is φ = 17003520.

The previous prime is 43606531. The next prime is 43606543. The reversal of 43606540 is 4560634.

43606540 is a modest number, since divided by 6540 gives 4360 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 43606499 and 43606508.

It is not an unprimeable number, because it can be changed into a prime (43606543) 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, 180820 + ... + 181060.

It is an arithmetic number, because the mean of its divisors is an integer number (1956570).

Almost surely, 2^43606540 is an apocalyptic number.

It is an amenable number.

43606540 is an abundant number, since it is smaller than the sum of its proper divisors (50308820).

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

43606540 is a wasteful number, since it uses less digits than its factorization.

43606540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 43606540 is about 6603.5248163386. The cubic root of 43606540 is about 351.9793699170.

The spelling of 43606540 in words is "forty-three million, six hundred six thousand, five hundred forty".