43682146 has 8 divisors (see below), whose sum is σ = 69377580. Its totient is φ = 20556288.

The previous prime is 43682143. The next prime is 43682173. The reversal of 43682146 is 64128634.

It can be written as a sum of positive squares in 2 ways, for example, as 42107121 + 1575025 = 6489^2 + 1255^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 1284769 = 43682146 / (4 + 3 + 6 + 8 + 2 + 1 + 4 + 6).

It is not an unprimeable number, because it can be changed into a prime (43682143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642351 + ... + 642418.

Almost surely, 2^43682146 is an apocalyptic number.

43682146 is a deficient number, since it is larger than the sum of its proper divisors (25695434).

43682146 is a wasteful number, since it uses less digits than its factorization.

43682146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284788.

The product of its digits is 27648, while the sum is 34.

The square root of 43682146 is about 6609.2470070349. The cubic root of 43682146 is about 352.1826757133.

The spelling of 43682146 in words is "forty-three million, six hundred eighty-two thousand, one hundred forty-six".