1916888 has 8 divisors (see below), whose sum is σ = 3594180. Its totient is φ = 958440.

The previous prime is 1916881. The next prime is 1916909. The reversal of 1916888 is 8886191.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119798 + ... + 119813.

2^1916888 is an apocalyptic number.

It is an amenable number.

1916888 is a deficient number, since it is larger than the sum of its proper divisors (1677292).

1916888 is a wasteful number, since it uses less digits than its factorization.

1916888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239617 (or 239613 counting only the distinct ones).

The product of its digits is 27648, while the sum is 41.

The square root of 1916888 is about 1384.5172443852. The cubic root of 1916888 is about 124.2221131785. Note that the first 3 decimals are identical.

The spelling of 1916888 in words is "one million, nine hundred sixteen thousand, eight hundred eighty-eight".