998531016 has 384 divisors, whose sum is σ = 3348864000. Its totient is φ = 245887488.

The previous prime is 998531003. The next prime is 998531029. The reversal of 998531016 is 610135899.

998531016 is a nontrivial binomial coefficient, being equal to C(44689, 2).

It is an interprime number because it is at equal distance from previous prime (998531003) and next prime (998531029).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14903415 + ... + 14903481.

It is an arithmetic number, because the mean of its divisors is an integer number (8721000).

Almost surely, 2^998531016 is an apocalyptic number.

998531016 is the 44688-th triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998531016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674432000).

998531016 is an abundant number, since it is smaller than the sum of its proper divisors (2350332984).

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

998531016 is a wasteful number, since it uses less digits than its factorization.

998531016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 998531016 is about 31599.5413890772. The cubic root of 998531016 is about 999.5100987026.

The spelling of 998531016 in words is "nine hundred ninety-eight million, five hundred thirty-one thousand, sixteen".