4399005625 has 45 divisors (see below), whose sum is σ = 6411382857. Its totient is φ = 3008502000.

The previous prime is 4399005593. The next prime is 4399005641. The reversal of 4399005625 is 5265009934.

The square root of 4399005625 is 66325.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 344882041 + 4054123584 = 18571^2 + 63672^2 .

It is not a de Polignac number, because 4399005625 - 2⁵ = 4399005593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 11606686 + ... + 11607064.

Almost surely, 2^4399005625 is an apocalyptic number.

4399005625 is the 66325-th square number.

4399005625 is the 33163-rd centered octagonal number.

It is an amenable number.

4399005625 is a deficient number, since it is larger than the sum of its proper divisors (2012377232).

4399005625 is an frugal number, since it uses more digits than its factorization.

4399005625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 43.

The cubic root of 4399005625 is about 1638.5190905998.

The spelling of 4399005625 in words is "four billion, three hundred ninety-nine million, five thousand, six hundred twenty-five".