2019248656 has 40 divisors (see below), whose sum is σ = 4156620120. Its totient is φ = 948455424.

The previous prime is 2019248633. The next prime is 2019248663. The reversal of 2019248656 is 6568429102.

It can be written as a sum of positive squares in 4 ways, for example, as 119683600 + 1899565056 = 10940^2 + 43584^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41641 + ... + 75976.

It is an arithmetic number, because the mean of its divisors is an integer number (103915503).

Almost surely, 2^2019248656 is an apocalyptic number.

It is an amenable number.

2019248656 is an abundant number, since it is smaller than the sum of its proper divisors (2137371464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2019248656 is a wasteful number, since it uses less digits than its factorization.

2019248656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117691 (or 117685 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 2019248656 is about 44936.0507387999. The cubic root of 2019248656 is about 1263.9501162015.

The spelling of 2019248656 in words is "two billion, nineteen million, two hundred forty-eight thousand, six hundred fifty-six".