1920773934 has 96 divisors (see below), whose sum is σ = 4500437760. Its totient is φ = 589881600.

The previous prime is 1920773891. The next prime is 1920773947. The reversal of 1920773934 is 4393770291.

1920773934 is a `hidden beast` number, since 192 + 0 + 77 + 393 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1920773934.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4583977 + ... + 4584395.

It is an arithmetic number, because the mean of its divisors is an integer number (46879560).

Almost surely, 2^1920773934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1920773934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2250218880).

1920773934 is an abundant number, since it is smaller than the sum of its proper divisors (2579663826).

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

1920773934 is a wasteful number, since it uses less digits than its factorization.

1920773934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 1920773934 is about 43826.6349837630. The cubic root of 1920773934 is about 1243.0599794536.

The spelling of 1920773934 in words is "one billion, nine hundred twenty million, seven hundred seventy-three thousand, nine hundred thirty-four".