43449946 has 8 divisors (see below), whose sum is σ = 67422420. Its totient is φ = 20975808.

The previous prime is 43449937. The next prime is 43449947. The reversal of 43449946 is 64994434.

43449946 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 2 ways, for example, as 43046721 + 403225 = 6561^2 + 635^2 .

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

It is not an unprimeable number, because it can be changed into a prime (43449947) 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, 374511 + ... + 374626.

Almost surely, 2^43449946 is an apocalyptic number.

43449946 is a deficient number, since it is larger than the sum of its proper divisors (23972474).

43449946 is a wasteful number, since it uses less digits than its factorization.

43449946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749168.

The product of its digits is 373248, while the sum is 43.

The square root of 43449946 is about 6591.6573029853. The cubic root of 43449946 is about 351.5575374220.

The spelling of 43449946 in words is "forty-three million, four hundred forty-nine thousand, nine hundred forty-six".