43649014 has 4 divisors (see below), whose sum is σ = 65473524. Its totient is φ = 21824506.

The previous prime is 43648987. The next prime is 43649017. The reversal of 43649014 is 41094634.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43649017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10912252 + ... + 10912255.

It is an arithmetic number, because the mean of its divisors is an integer number (16368381).

Almost surely, 2^43649014 is an apocalyptic number.

43649014 is a deficient number, since it is larger than the sum of its proper divisors (21824510).

43649014 is a wasteful number, since it uses less digits than its factorization.

43649014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21824509.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 43649014 is about 6606.7400433194. The cubic root of 43649014 is about 352.0936121116.

The spelling of 43649014 in words is "forty-three million, six hundred forty-nine thousand, fourteen".