43749946 has 8 divisors (see below), whose sum is σ = 66238560. Its totient is φ = 21670428.

The previous prime is 43749943. The next prime is 43749967. The reversal of 43749946 is 64994734.

43749946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 43749896 and 43749905.

It is not an unprimeable number, because it can be changed into a prime (43749941) 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, 102006 + ... + 102433.

It is an arithmetic number, because the mean of its divisors is an integer number (8279820).

Almost surely, 2^43749946 is an apocalyptic number.

43749946 is a deficient number, since it is larger than the sum of its proper divisors (22488614).

43749946 is a wasteful number, since it uses less digits than its factorization.

43749946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204548.

The product of its digits is 653184, while the sum is 46.

The square root of 43749946 is about 6614.3741956439. The cubic root of 43749946 is about 352.3647916302.

The spelling of 43749946 in words is "forty-three million, seven hundred forty-nine thousand, nine hundred forty-six".