889942720 has 112 divisors (see below), whose sum is σ = 2246680800. Its totient is φ = 335175680.

The previous prime is 889942649. The next prime is 889942723. The reversal of 889942720 is 27249988.

It is a super-3 number, since 3×889942720³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (889942723) 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, 379311 + ... + 381649.

It is an arithmetic number, because the mean of its divisors is an integer number (20059650).

Almost surely, 2^889942720 is an apocalyptic number.

889942720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889942720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1123340400).

889942720 is an abundant number, since it is smaller than the sum of its proper divisors (1356738080).

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

889942720 is a wasteful number, since it uses less digits than its factorization.

889942720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2416 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 889942720 is about 29831.9077499244. The cubic root of 889942720 is about 961.8795353441.

The spelling of 889942720 in words is "eight hundred eighty-nine million, nine hundred forty-two thousand, seven hundred twenty".