439877952 has 140 divisors (see below), whose sum is σ = 1329368436. Its totient is φ = 143769600.

The previous prime is 439877947. The next prime is 439877959. The reversal of 439877952 is 259778934.

It can be written as a sum of positive squares in 2 ways, for example, as 400640256 + 39237696 = 20016^2 + 6264^2 .

It is a super-2 number, since 2×439877952² = 386985225311428608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439877959) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 273952 + ... + 275552.

Almost surely, 2^439877952 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 439877952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664684218).

439877952 is an abundant number, since it is smaller than the sum of its proper divisors (889490484).

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

439877952 is a wasteful number, since it uses less digits than its factorization.

439877952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678 (or 1659 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 439877952 is about 20973.2675565826. The cubic root of 439877952 is about 760.5201609911.

The spelling of 439877952 in words is "four hundred thirty-nine million, eight hundred seventy-seven thousand, nine hundred fifty-two".