43980812 has 6 divisors (see below), whose sum is σ = 76966428. Its totient is φ = 21990404.

The previous prime is 43980809. The next prime is 43980829. The reversal of 43980812 is 21808934.

It is a happy number.

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, 5497598 + ... + 5497605.

It is an arithmetic number, because the mean of its divisors is an integer number (12827738).

Almost surely, 2^43980812 is an apocalyptic number.

It is an amenable number.

43980812 is a deficient number, since it is larger than the sum of its proper divisors (32985616).

43980812 is a wasteful number, since it uses less digits than its factorization.

43980812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10995207 (or 10995205 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 43980812 is about 6631.8030730715. The cubic root of 43980812 is about 352.9835076438.

The spelling of 43980812 in words is "forty-three million, nine hundred eighty thousand, eight hundred twelve".