889419944 has 64 divisors (see below), whose sum is σ = 2024880000. Its totient is φ = 357758208.

The previous prime is 889419941. The next prime is 889419961. The reversal of 889419944 is 449914988.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 889419944.

It is not an unprimeable number, because it can be changed into a prime (889419941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112142 + ... + 119810.

It is an arithmetic number, because the mean of its divisors is an integer number (31638750).

Almost surely, 2^889419944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889419944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1012440000).

889419944 is an abundant number, since it is smaller than the sum of its proper divisors (1135460056).

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

889419944 is a wasteful number, since it uses less digits than its factorization.

889419944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810 (or 7806 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 56.

The square root of 889419944 is about 29823.1444351530. The cubic root of 889419944 is about 961.6911539203.

The spelling of 889419944 in words is "eight hundred eighty-nine million, four hundred nineteen thousand, nine hundred forty-four".