998133072 has 40 divisors (see below), whose sum is σ = 2582037120. Its totient is φ = 332256000.

The previous prime is 998133067. The next prime is 998133077. The reversal of 998133072 is 270331899.

It is an interprime number because it is at equal distance from previous prime (998133067) and next prime (998133077).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998133077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22204 + ... + 49892.

It is an arithmetic number, because the mean of its divisors is an integer number (64550928).

Almost surely, 2^998133072 is an apocalyptic number.

It is an amenable number.

998133072 is an abundant number, since it is smaller than the sum of its proper divisors (1583904048).

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

998133072 is a wasteful number, since it uses less digits than its factorization.

998133072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28451 (or 28445 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 998133072 is about 31593.2440879375. The cubic root of 998133072 is about 999.3773029956.

The spelling of 998133072 in words is "nine hundred ninety-eight million, one hundred thirty-three thousand, seventy-two".