439745450 has 12 divisors (see below), whose sum is σ = 817926630. Its totient is φ = 175898160.

The previous prime is 439745431. The next prime is 439745461. The reversal of 439745450 is 54547934.

It can be written as a sum of positive squares in 3 ways, for example, as 374151649 + 65593801 = 19343^2 + 8099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 439745398 and 439745407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4397405 + ... + 4397504.

Almost surely, 2^439745450 is an apocalyptic number.

439745450 is a deficient number, since it is larger than the sum of its proper divisors (378181180).

439745450 is a wasteful number, since it uses less digits than its factorization.

439745450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8794921 (or 8794916 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 439745450 is about 20970.1084880360. The cubic root of 439745450 is about 760.4437908967.

The spelling of 439745450 in words is "four hundred thirty-nine million, seven hundred forty-five thousand, four hundred fifty".