43981412 has 12 divisors (see below), whose sum is σ = 77715456. Its totient is φ = 21777000.

The previous prime is 43981411. The next prime is 43981453. The reversal of 43981412 is 21418934.

It is a happy number.

43981412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (43981411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52964 + ... + 53787.

It is an arithmetic number, because the mean of its divisors is an integer number (6476288).

Almost surely, 2^43981412 is an apocalyptic number.

It is an amenable number.

43981412 is a deficient number, since it is larger than the sum of its proper divisors (33734044).

43981412 is a wasteful number, since it uses less digits than its factorization.

43981412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106858 (or 106856 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 43981412 is about 6631.8483094836. The cubic root of 43981412 is about 352.9851128070.

The spelling of 43981412 in words is "forty-three million, nine hundred eighty-one thousand, four hundred twelve".