43946066 has 4 divisors (see below), whose sum is σ = 65919102. Its totient is φ = 21973032.

The previous prime is 43946057. The next prime is 43946087. The reversal of 43946066 is 66064934.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27258841 + 16687225 = 5221^2 + 4085^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10986515 + ... + 10986518.

Almost surely, 2^43946066 is an apocalyptic number.

43946066 is a deficient number, since it is larger than the sum of its proper divisors (21973036).

43946066 is a wasteful number, since it uses less digits than its factorization.

43946066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21973035.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 43946066 is about 6629.1829059093. The cubic root of 43946066 is about 352.8905277309.

The spelling of 43946066 in words is "forty-three million, nine hundred forty-six thousand, sixty-six".