1916054784 has 216 divisors, whose sum is σ = 6508259520. Its totient is φ = 544693248.

The previous prime is 1916054783. The next prime is 1916054807. The reversal of 1916054784 is 4874506191.

1916054784 is a `hidden beast` number, since 19 + 16 + 0 + 547 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916054783) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9628317 + ... + 9628515.

Almost surely, 2^1916054784 is an apocalyptic number.

1916054784 is a gapful number since it is divisible by the number (14) 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 1916054784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3254129760).

1916054784 is an abundant number, since it is smaller than the sum of its proper divisors (4592204736).

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

1916054784 is an frugal number, since it uses more digits than its factorization.

1916054784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1916054784 is about 43772.7630382182. The cubic root of 1916054784 is about 1242.0411197850.

The spelling of 1916054784 in words is "one billion, nine hundred sixteen million, fifty-four thousand, seven hundred eighty-four".