43949649 has 8 divisors (see below), whose sum is σ = 58643200. Its totient is φ = 29277936.

The previous prime is 43949629. The next prime is 43949657. The reversal of 43949649 is 94694934.

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

It is not a de Polignac number, because 43949649 - 2⁸ = 43949393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43949598 and 43949607.

It is not an unprimeable number, because it can be changed into a prime (43949629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27 + ... + 9375.

It is an arithmetic number, because the mean of its divisors is an integer number (7330400).

Almost surely, 2^43949649 is an apocalyptic number.

It is an amenable number.

43949649 is a deficient number, since it is larger than the sum of its proper divisors (14693551).

43949649 is a wasteful number, since it uses less digits than its factorization.

43949649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10919.

The product of its digits is 839808, while the sum is 48.

The square root of 43949649 is about 6629.4531448680. The cubic root of 43949649 is about 352.9001180653.

The spelling of 43949649 in words is "forty-three million, nine hundred forty-nine thousand, six hundred forty-nine".