43945466 has 4 divisors (see below), whose sum is σ = 65918202. Its totient is φ = 21972732.

The previous prime is 43945457. The next prime is 43945477. The reversal of 43945466 is 66454934.

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., 26061025 + 17884441 = 5105^2 + 4229^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10986365 + ... + 10986368.

Almost surely, 2^43945466 is an apocalyptic number.

43945466 is a deficient number, since it is larger than the sum of its proper divisors (21972736).

43945466 is a wasteful number, since it uses less digits than its factorization.

43945466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21972735.

The product of its digits is 311040, while the sum is 41.

The square root of 43945466 is about 6629.1376513088. The cubic root of 43945466 is about 352.8889217071. Note that the first 3 decimals are identical.

The spelling of 43945466 in words is "forty-three million, nine hundred forty-five thousand, four hundred sixty-six".