439343868 has 24 divisors (see below), whose sum is σ = 1029541968. Its totient is φ = 145818496.

The previous prime is 439343851. The next prime is 439343893. The reversal of 439343868 is 868343934.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75771 + ... + 81362.

It is an arithmetic number, because the mean of its divisors is an integer number (42897582).

Almost surely, 2^439343868 is an apocalyptic number.

It is an amenable number.

439343868 is an abundant number, since it is smaller than the sum of its proper divisors (590198100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

439343868 is a wasteful number, since it uses less digits than its factorization.

439343868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157373 (or 157371 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 48.

The square root of 439343868 is about 20960.5311955590. The cubic root of 439343868 is about 760.2122375856.

The spelling of 439343868 in words is "four hundred thirty-nine million, three hundred forty-three thousand, eight hundred sixty-eight".