439450020 has 36 divisors (see below), whose sum is σ = 1332998940. Its totient is φ = 117186624.

The previous prime is 439450007. The next prime is 439450043. The reversal of 439450020 is 20054934.

It can be written as a sum of positive squares in 2 ways, for example, as 270865764 + 168584256 = 16458^2 + 12984^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1220515 + ... + 1220874.

Almost surely, 2^439450020 is an apocalyptic number.

It is an amenable number.

439450020 is an abundant number, since it is smaller than the sum of its proper divisors (893548920).

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

439450020 is a wasteful number, since it uses less digits than its factorization.

439450020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441404 (or 2441399 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 439450020 is about 20963.0632303583. The cubic root of 439450020 is about 760.2734588422.

The spelling of 439450020 in words is "four hundred thirty-nine million, four hundred fifty thousand, twenty".