439039849 has 4 divisors (see below), whose sum is σ = 449748180. Its totient is φ = 428331520.

The previous prime is 439039813. The next prime is 439039907. The reversal of 439039849 is 948930934.

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

It can be written as a sum of positive squares in 2 ways, for example, as 189557824 + 249482025 = 13768^2 + 15795^2 .

It is a cyclic number.

It is not a de Polignac number, because 439039849 - 2⁷ = 439039721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (439039049) 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, 5354104 + ... + 5354185.

It is an arithmetic number, because the mean of its divisors is an integer number (112437045).

Almost surely, 2^439039849 is an apocalyptic number.

It is an amenable number.

439039849 is a deficient number, since it is larger than the sum of its proper divisors (10708331).

439039849 is a wasteful number, since it uses less digits than its factorization.

439039849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10708330.

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 439039849 is about 20953.2777626795. The cubic root of 439039849 is about 760.0368455128.

The spelling of 439039849 in words is "four hundred thirty-nine million, thirty-nine thousand, eight hundred forty-nine".