1930519668 has 192 divisors, whose sum is σ = 5855625216. Its totient is φ = 484387200.

The previous prime is 1930519667. The next prime is 1930519687. The reversal of 1930519668 is 8669150391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930519667) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3465646 + ... + 3466202.

It is an arithmetic number, because the mean of its divisors is an integer number (30498048).

Almost surely, 2^1930519668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1930519668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2927812608).

1930519668 is an abundant number, since it is smaller than the sum of its proper divisors (3925105548).

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

1930519668 is a wasteful number, since it uses less digits than its factorization.

1930519668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 1930519668 is about 43937.6793652100. The cubic root of 1930519668 is about 1245.1588036332.

The spelling of 1930519668 in words is "one billion, nine hundred thirty million, five hundred nineteen thousand, six hundred sixty-eight".