439649616 has 80 divisors (see below), whose sum is σ = 1308360704. Its totient is φ = 124612992.

The previous prime is 439649603. The next prime is 439649653. The reversal of 439649616 is 616946934.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37521 + ... + 47823.

Almost surely, 2^439649616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 439649616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654180352).

439649616 is an abundant number, since it is smaller than the sum of its proper divisors (868711088).

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

439649616 is a wasteful number, since it uses less digits than its factorization.

439649616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10448 (or 10442 counting only the distinct ones).

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

The square root of 439649616 is about 20967.8233491223. The cubic root of 439649616 is about 760.3885455535.

The spelling of 439649616 in words is "four hundred thirty-nine million, six hundred forty-nine thousand, six hundred sixteen".