898447840 has 96 divisors (see below), whose sum is σ = 2208034080. Its totient is φ = 345053184.

The previous prime is 898447831. The next prime is 898447867. The reversal of 898447840 is 48744898.

898447840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052854 + ... + 1053706.

It is an arithmetic number, because the mean of its divisors is an integer number (23000355).

Almost surely, 2^898447840 is an apocalyptic number.

898447840 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 898447840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1104017040).

898447840 is an abundant number, since it is smaller than the sum of its proper divisors (1309586240).

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

898447840 is a wasteful number, since it uses less digits than its factorization.

898447840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The square root of 898447840 is about 29974.1195033315. The cubic root of 898447840 is about 964.9340304084.

The spelling of 898447840 in words is "eight hundred ninety-eight million, four hundred forty-seven thousand, eight hundred forty".