998531046 has 24 divisors (see below), whose sum is σ = 2184908544. Its totient is φ = 329547600.

The previous prime is 998531041. The next prime is 998531047. The reversal of 998531046 is 640135899.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 998530992 and 998531010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998531041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272806 + ... + 276441.

It is an arithmetic number, because the mean of its divisors is an integer number (91037856).

Almost surely, 2^998531046 is an apocalyptic number.

998531046 is an abundant number, since it is smaller than the sum of its proper divisors (1186377498).

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

998531046 is a wasteful number, since it uses less digits than its factorization.

998531046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549356 (or 549353 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 998531046 is about 31599.5418637676. The cubic root of 998531046 is about 999.5101087124.

The spelling of 998531046 in words is "nine hundred ninety-eight million, five hundred thirty-one thousand, forty-six".