2019248644 has 36 divisors (see below), whose sum is σ = 4352421276. Its totient is φ = 814485504.

The previous prime is 2019248633. The next prime is 2019248663. The reversal of 2019248644 is 4468429102.

It can be written as a sum of positive squares in 2 ways, for example, as 1625702400 + 393546244 = 40320^2 + 19838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2019248597 and 2019248606.

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 11 ways as a sum of consecutive naturals, for example, 299677 + ... + 306340.

It is an arithmetic number, because the mean of its divisors is an integer number (120900591).

Almost surely, 2^2019248644 is an apocalyptic number.

It is an amenable number.

2019248644 is an abundant number, since it is smaller than the sum of its proper divisors (2333172632).

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

2019248644 is a wasteful number, since it uses less digits than its factorization.

2019248644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606052 (or 606043 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 2019248644 is about 44936.0506052768. The cubic root of 2019248644 is about 1263.9501136977.

The spelling of 2019248644 in words is "two billion, nineteen million, two hundred forty-eight thousand, six hundred forty-four".