2019248309 has 16 divisors (see below), whose sum is σ = 2235089472. Its totient is φ = 1812440448.

The previous prime is 2019248293. The next prime is 2019248317. The reversal of 2019248309 is 9038429102.

It is not a de Polignac number, because 2019248309 - 2⁴ = 2019248293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010248309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118937 + ... + 134849.

It is an arithmetic number, because the mean of its divisors is an integer number (139693092).

Almost surely, 2^2019248309 is an apocalyptic number.

It is an amenable number.

2019248309 is a deficient number, since it is larger than the sum of its proper divisors (215841163).

2019248309 is a wasteful number, since it uses less digits than its factorization.

2019248309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16196.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2019248309 is about 44936.0468777573. The cubic root of 2019248309 is about 1263.9500437999.

The spelling of 2019248309 in words is "two billion, nineteen million, two hundred forty-eight thousand, three hundred nine".