439275140 has 12 divisors (see below), whose sum is σ = 922477836. Its totient is φ = 175710048.

The previous prime is 439275103. The next prime is 439275163. The reversal of 439275140 is 41572934.

It can be written as a sum of positive squares in 2 ways, for example, as 125843524 + 313431616 = 11218^2 + 17704^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 439275140.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10981859 + ... + 10981898.

It is an arithmetic number, because the mean of its divisors is an integer number (76873153).

Almost surely, 2^439275140 is an apocalyptic number.

It is an amenable number.

439275140 is an abundant number, since it is smaller than the sum of its proper divisors (483202696).

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

439275140 is a wasteful number, since it uses less digits than its factorization.

439275140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21963766 (or 21963764 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 439275140 is about 20958.8916691699. The cubic root of 439275140 is about 760.1725946884.

The spelling of 439275140 in words is "four hundred thirty-nine million, two hundred seventy-five thousand, one hundred forty".