1889541388 has 24 divisors (see below), whose sum is σ = 3900990464. Its totient is φ = 783680400.

The previous prime is 1889541383. The next prime is 1889541403. The reversal of 1889541388 is 8831459881.

It is not an unprimeable number, because it can be changed into a prime (1889541383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087578 + ... + 1089313.

Almost surely, 2^1889541388 is an apocalyptic number.

It is an amenable number.

1889541388 is an abundant number, since it is smaller than the sum of its proper divisors (2011449076).

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

1889541388 is a wasteful number, since it uses less digits than its factorization.

1889541388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176933 (or 2176931 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 55.

The square root of 1889541388 is about 43468.8553794553. The cubic root of 1889541388 is about 1236.2855781018.

The spelling of 1889541388 in words is "one billion, eight hundred eighty-nine million, five hundred forty-one thousand, three hundred eighty-eight".