989298240 has 168 divisors, whose sum is σ = 3654015552. Its totient is φ = 226114560.

The previous prime is 989298239. The next prime is 989298259. The reversal of 989298240 is 42892989.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×989298240² = 1957422015334195200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36525 + ... + 57555.

Almost surely, 2^989298240 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 989298240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1827007776).

989298240 is an abundant number, since it is smaller than the sum of its proper divisors (2664717312).

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

989298240 is a wasteful number, since it uses less digits than its factorization.

989298240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21065 (or 21048 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 989298240 is about 31453.1117697439. Note that the first 3 decimals coincide. The cubic root of 989298240 is about 996.4199451690.

The spelling of 989298240 in words is "nine hundred eighty-nine million, two hundred ninety-eight thousand, two hundred forty".