998135024 has 40 divisors (see below), whose sum is σ = 2000110080. Its totient is φ = 482040000.

The previous prime is 998135011. The next prime is 998135029. The reversal of 998135024 is 420531899.

It is a super-2 number, since 2×998135024² = 1992547052270961152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998135029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305399 + ... + 308649.

It is an arithmetic number, because the mean of its divisors is an integer number (50002752).

Almost surely, 2^998135024 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 998135024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000055040).

998135024 is an abundant number, since it is smaller than the sum of its proper divisors (1001975056).

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

998135024 is a wasteful number, since it uses less digits than its factorization.

998135024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909 (or 3903 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 998135024 is about 31593.2749806031. The cubic root of 998135024 is about 999.3779544729.

The spelling of 998135024 in words is "nine hundred ninety-eight million, one hundred thirty-five thousand, twenty-four".