998452224 has 528 divisors, whose sum is σ = 3808402560. Its totient is φ = 255467520.

The previous prime is 998452207. The next prime is 998452237. The reversal of 998452224 is 422254899.

It is a tau number, because it is divible by the number of its divisors (528).

It is a super-2 number, since 2×998452224² = 1993813687221092352, which contains 22 as substring.

Its product of digits (414720) is a multiple of the sum of its prime divisors (90).

It is a self number, because there is not a number n which added to its sum of digits gives 998452224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14902239 + ... + 14902305.

Almost surely, 2^998452224 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 998452224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1904201280).

998452224 is an abundant number, since it is smaller than the sum of its proper divisors (2809950336).

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

998452224 is a wasteful number, since it uses less digits than its factorization.

998452224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 90 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 998452224 is about 31598.2946375275. The cubic root of 998452224 is about 999.4838082586.

The spelling of 998452224 in words is "nine hundred ninety-eight million, four hundred fifty-two thousand, two hundred twenty-four".