1916775936 has 120 divisors (see below), whose sum is σ = 5823366120. Its totient is φ = 605270016.

The previous prime is 1916775929. The next prime is 1916775943. The reversal of 1916775936 is 6395776191.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1916775929) and next prime (1916775943).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76606 + ... + 98498.

It is an arithmetic number, because the mean of its divisors is an integer number (48528051).

Almost surely, 2^1916775936 is an apocalyptic number.

1916775936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1916775936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2911683060).

1916775936 is an abundant number, since it is smaller than the sum of its proper divisors (3906590184).

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

1916775936 is a wasteful number, since it uses less digits than its factorization.

1916775936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21936 (or 21917 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 54.

The square root of 1916775936 is about 43780.9997144880. Note that the first 3 decimals coincide. The cubic root of 1916775936 is about 1242.1969239745.

The spelling of 1916775936 in words is "one billion, nine hundred sixteen million, seven hundred seventy-five thousand, nine hundred thirty-six".