43981712 has 10 divisors (see below), whose sum is σ = 85214598. Its totient is φ = 21990848.

The previous prime is 43981711. The next prime is 43981739. The reversal of 43981712 is 21718934.

43981712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 42823936 + 1157776 = 6544^2 + 1076^2 .

It is not an unprimeable number, because it can be changed into a prime (43981711) 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 as a sum of consecutive naturals, namely, 1374413 + ... + 1374444.

Almost surely, 2^43981712 is an apocalyptic number.

It is an amenable number.

43981712 is a deficient number, since it is larger than the sum of its proper divisors (41232886).

43981712 is a wasteful number, since it uses less digits than its factorization.

43981712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748865 (or 2748859 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 43981712 is about 6631.8709275739. The cubic root of 43981712 is about 352.9859153831.

The spelling of 43981712 in words is "forty-three million, nine hundred eighty-one thousand, seven hundred twelve".