43972966 has 8 divisors (see below), whose sum is σ = 66600144. Its totient is φ = 21772920.

The previous prime is 43972963. The next prime is 43972979. The reversal of 43972966 is 66927934.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43972963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106525 + ... + 106936.

It is an arithmetic number, because the mean of its divisors is an integer number (8325018).

Almost surely, 2^43972966 is an apocalyptic number.

43972966 is a deficient number, since it is larger than the sum of its proper divisors (22627178).

43972966 is a wasteful number, since it uses less digits than its factorization.

43972966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213566.

The product of its digits is 489888, while the sum is 46.

The square root of 43972966 is about 6631.2115031870. The cubic root of 43972966 is about 352.9625161160.

The spelling of 43972966 in words is "forty-three million, nine hundred seventy-two thousand, nine hundred sixty-six".