1630930209 has 8 divisors (see below), whose sum is σ = 2174855040. Its totient is φ = 1087146096.

The previous prime is 1630930201. The next prime is 1630930261. The reversal of 1630930209 is 9020390361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1630930209 - 2³ = 1630930201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1630930209.

It is not an unprimeable number, because it can be changed into a prime (1630930201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4249 + ... + 57270.

It is an arithmetic number, because the mean of its divisors is an integer number (271856880).

Almost surely, 2^1630930209 is an apocalyptic number.

It is an amenable number.

1630930209 is a deficient number, since it is larger than the sum of its proper divisors (543924831).

1630930209 is an equidigital number, since it uses as much as digits as its factorization.

1630930209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70359.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 1630930209 is about 40384.7769462702. The cubic root of 1630930209 is about 1177.0957518937.

The spelling of 1630930209 in words is "one billion, six hundred thirty million, nine hundred thirty thousand, two hundred nine".