889107840 has 192 divisors, whose sum is σ = 3184468560. Its totient is φ = 237053952.

The previous prime is 889107829. The next prime is 889107847. The reversal of 889107840 is 48701988.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×889107840² = 1581025502298931200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889107847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152662 + ... + 158378.

Almost surely, 2^889107840 is an apocalyptic number.

889107840 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 889107840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592234280).

889107840 is an abundant number, since it is smaller than the sum of its proper divisors (2295360720).

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

889107840 is an equidigital number, since it uses as much as digits as its factorization.

889107840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751 (or 5727 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 889107840 is about 29817.9113956695. The cubic root of 889107840 is about 961.5786525937.

The spelling of 889107840 in words is "eight hundred eighty-nine million, one hundred seven thousand, eight hundred forty".