1894041888 has 48 divisors (see below), whose sum is σ = 4985074080. Its totient is φ = 629669376.

The previous prime is 1894041871. The next prime is 1894041889. The reversal of 1894041888 is 8881404981.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1894041888.

It is not an unprimeable number, because it can be changed into a prime (1894041889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10356 + ... + 62412.

It is an arithmetic number, because the mean of its divisors is an integer number (103855710).

Almost surely, 2^1894041888 is an apocalyptic number.

It is an amenable number.

1894041888 is an abundant number, since it is smaller than the sum of its proper divisors (3091032192).

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

1894041888 is a wasteful number, since it uses less digits than its factorization.

1894041888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52449 (or 52441 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 51.

The square root of 1894041888 is about 43520.5915400974. The cubic root of 1894041888 is about 1237.2663260859.

The spelling of 1894041888 in words is "one billion, eight hundred ninety-four million, forty-one thousand, eight hundred eighty-eight".