898742988 has 216 divisors, whose sum is σ = 2744960400. Its totient is φ = 246216960.

The previous prime is 898742983. The next prime is 898742989. The reversal of 898742988 is 889247898.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (898742981) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3340918 + ... + 3341186.

It is an arithmetic number, because the mean of its divisors is an integer number (12708150).

Almost surely, 2^898742988 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 898742988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372480200).

898742988 is an abundant number, since it is smaller than the sum of its proper divisors (1846217412).

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

898742988 is a wasteful number, since it uses less digits than its factorization.

898742988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 357 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 63.

The square root of 898742988 is about 29979.0424797057. The cubic root of 898742988 is about 965.0396819391.

The spelling of 898742988 in words is "eight hundred ninety-eight million, seven hundred forty-two thousand, nine hundred eighty-eight".