43959049 has 4 divisors (see below), whose sum is σ = 45870336. Its totient is φ = 42047764.

The previous prime is 43959043. The next prime is 43959077. The reversal of 43959049 is 94095934.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94095934 = 2 ⋅47047967.

It is a cyclic number.

It is not a de Polignac number, because 43959049 - 2¹⁷ = 43827977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43958996 and 43959014.

It is not an unprimeable number, because it can be changed into a prime (43959043) 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, 955609 + ... + 955654.

It is an arithmetic number, because the mean of its divisors is an integer number (11467584).

Almost surely, 2^43959049 is an apocalyptic number.

It is an amenable number.

43959049 is a deficient number, since it is larger than the sum of its proper divisors (1911287).

43959049 is a wasteful number, since it uses less digits than its factorization.

43959049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911286.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 43959049 is about 6630.1620643842. The cubic root of 43959049 is about 352.9252758289.

The spelling of 43959049 in words is "forty-three million, nine hundred fifty-nine thousand, forty-nine".