998511052 has 96 divisors (see below), whose sum is σ = 2322432000. Its totient is φ = 364077120.

The previous prime is 998511037. The next prime is 998511071. The reversal of 998511052 is 250115899.

It is a super-2 number, since 2×998511052² = 1994048641932293408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 998510996 and 998511014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331449 + ... + 334447.

It is an arithmetic number, because the mean of its divisors is an integer number (24192000).

Almost surely, 2^998511052 is an apocalyptic number.

998511052 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998511052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1161216000).

998511052 is an abundant number, since it is smaller than the sum of its proper divisors (1323920948).

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

998511052 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (998511051) it forms an eRAP, since the sums of their prime factors are consecutive (3090 and 3091).

998511052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091 (or 3089 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 998511052 is about 31599.2254968377. The cubic root of 998511052 is about 999.5034374665.

The spelling of 998511052 in words is "nine hundred ninety-eight million, five hundred eleven thousand, fifty-two".