43661106 has 20 divisors (see below), whose sum is σ = 97833582. Its totient is φ = 14553648.

The previous prime is 43661099. The next prime is 43661119. The reversal of 43661106 is 60116634.

43661106 is a `hidden beast` number, since 43 + 6 + 611 + 0 + 6 = 666.

43661106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30636225 + 13024881 = 5535^2 + 3609^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 43661106.

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 9 ways as a sum of consecutive naturals, for example, 134595 + ... + 134918.

Almost surely, 2^43661106 is an apocalyptic number.

43661106 is an abundant number, since it is smaller than the sum of its proper divisors (54172476).

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

43661106 is a wasteful number, since it uses less digits than its factorization.

43661106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269527 (or 269518 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 43661106 is about 6607.6551060115. The cubic root of 43661106 is about 352.1261223753.

The spelling of 43661106 in words is "forty-three million, six hundred sixty-one thousand, one hundred six".