889542378 has 16 divisors (see below), whose sum is σ = 1976760960. Its totient is φ = 296514108.

The previous prime is 889542371. The next prime is 889542389. The reversal of 889542378 is 873245988.

It is a happy number.

889542378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 16473007 = 889542378 / (8 + 8 + 9 + 5 + 4 + 2 + 3 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (889542371) 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, 8236450 + ... + 8236557.

It is an arithmetic number, because the mean of its divisors is an integer number (123547560).

Almost surely, 2^889542378 is an apocalyptic number.

889542378 is an abundant number, since it is smaller than the sum of its proper divisors (1087218582).

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

889542378 is a wasteful number, since it uses less digits than its factorization.

889542378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16473018 (or 16473012 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 889542378 is about 29825.1970320399. The cubic root of 889542378 is about 961.7352794177.

The spelling of 889542378 in words is "eight hundred eighty-nine million, five hundred forty-two thousand, three hundred seventy-eight".