2019859338 has 64 divisors (see below), whose sum is σ = 4841660160. Its totient is φ = 549545472.

The previous prime is 2019859313. The next prime is 2019859351. The reversal of 2019859338 is 8339589102.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77556 + ... + 100272.

It is an arithmetic number, because the mean of its divisors is an integer number (75650940).

Almost surely, 2^2019859338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2019859338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2420830080).

2019859338 is an abundant number, since it is smaller than the sum of its proper divisors (2821800822).

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

2019859338 is a wasteful number, since it uses less digits than its factorization.

2019859338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22831.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 2019859338 is about 44942.8452370341. The cubic root of 2019859338 is about 1264.0775223010.

The spelling of 2019859338 in words is "two billion, nineteen million, eight hundred fifty-nine thousand, three hundred thirty-eight".