43972806 has 8 divisors (see below), whose sum is σ = 87945624. Its totient is φ = 14657600.

The previous prime is 43972781. The next prime is 43972807. The reversal of 43972806 is 60827934.

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

43972806 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43972807) 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, 3664395 + ... + 3664406.

It is an arithmetic number, because the mean of its divisors is an integer number (10993203).

Almost surely, 2^43972806 is an apocalyptic number.

43972806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

43972806 is a wasteful number, since it uses less digits than its factorization.

43972806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7328806.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 43972806 is about 6631.1994390155. The cubic root of 43972806 is about 352.9620880191.

The spelling of 43972806 in words is "forty-three million, nine hundred seventy-two thousand, eight hundred six".