439981225 has 12 divisors (see below), whose sum is σ = 550585420. Its totient is φ = 348753600.

The previous prime is 439981219. The next prime is 439981247. The reversal of 439981225 is 522189934.

It can be written as a sum of positive squares in 6 ways, for example, as 15085456 + 424895769 = 3884^2 + 20613^2 .

It is not a de Polignac number, because 439981225 - 2⁵ = 439981193 is a prime.

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, 78006 + ... + 83455.

Almost surely, 2^439981225 is an apocalyptic number.

It is an amenable number.

439981225 is a deficient number, since it is larger than the sum of its proper divisors (110604195).

439981225 is a wasteful number, since it uses less digits than its factorization.

439981225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161580 (or 161575 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 439981225 is about 20975.7294271260. The cubic root of 439981225 is about 760.5796737511.

The spelling of 439981225 in words is "four hundred thirty-nine million, nine hundred eighty-one thousand, two hundred twenty-five".