439452864 has 98 divisors (see below), whose sum is σ = 1307599620. Its totient is φ = 146468736.

The previous prime is 439452859. The next prime is 439452887. The reversal of 439452864 is 468254934.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 41947 + ... + 51365.

Almost surely, 2^439452864 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 439452864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653799810).

439452864 is an abundant number, since it is smaller than the sum of its proper divisors (868146756).

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

439452864 is an frugal number, since it uses more digits than its factorization.

439452864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9449 (or 9424 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 439452864 is about 20963.1310638464. The cubic root of 439452864 is about 760.2750989324.

The spelling of 439452864 in words is "four hundred thirty-nine million, four hundred fifty-two thousand, eight hundred sixty-four".