1009446625 has 16 divisors (see below), whose sum is σ = 1374317568. Its totient is φ = 734142000.

The previous prime is 1009446619. The next prime is 1009446643. The reversal of 1009446625 is 5266449001.

It is not a de Polignac number, because 1009446625 - 2¹¹ = 1009444577 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365697 + ... + 368446.

It is an arithmetic number, because the mean of its divisors is an integer number (85894848).

Almost surely, 2^1009446625 is an apocalyptic number.

It is an amenable number.

1009446625 is a deficient number, since it is larger than the sum of its proper divisors (364870943).

1009446625 is an equidigital number, since it uses as much as digits as its factorization.

1009446625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734169 (or 734159 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1009446625 is about 31771.7897670245. The cubic root of 1009446625 is about 1003.1390112981.

The spelling of 1009446625 in words is "one billion, nine million, four hundred forty-six thousand, six hundred twenty-five".