2730499209 has 12 divisors (see below), whose sum is σ = 4018471236. Its totient is φ = 1785986592.

The previous prime is 2730499207. The next prime is 2730499231. The reversal of 2730499209 is 9029940372.

It can be written as a sum of positive squares in 2 ways, for example, as 2134162809 + 596336400 = 46197^2 + 24420^2 .

It is not a de Polignac number, because 2730499209 - 2¹ = 2730499207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2730499207) 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 11 ways as a sum of consecutive naturals, for example, 2861682 + ... + 2862635.

It is an arithmetic number, because the mean of its divisors is an integer number (334872603).

Almost surely, 2^2730499209 is an apocalyptic number.

It is an amenable number.

2730499209 is a deficient number, since it is larger than the sum of its proper divisors (1287972027).

2730499209 is a wasteful number, since it uses less digits than its factorization.

2730499209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724376 (or 5724373 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 2730499209 is about 52254.1788663835. The cubic root of 2730499209 is about 1397.7001711686.

The spelling of 2730499209 in words is "two billion, seven hundred thirty million, four hundred ninety-nine thousand, two hundred nine".