999998496 has 144 divisors (see below), whose sum is σ = 3355043328. Its totient is φ = 276480000.

The previous prime is 999998459. The next prime is 999998501. The reversal of 999998496 is 694899999.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

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 23 ways as a sum of consecutive naturals, for example, 54496 + ... + 70496.

It is an arithmetic number, because the mean of its divisors is an integer number (23298912).

Almost surely, 2^999998496 is an apocalyptic number.

999998496 is a gapful number since it is divisible by the number (96) 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 999998496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677521664).

999998496 is an abundant number, since it is smaller than the sum of its proper divisors (2355044832).

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

999998496 is a wasteful number, since it uses less digits than its factorization.

999998496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16055 (or 16044 counting only the distinct ones).

The product of its digits is 102036672, while the sum is 72.

The square root of 999998496 is about 31622.7528213468. The cubic root of 999998496 is about 999.9994986664. Note that the first 3 decimals are identical.

The spelling of 999998496 in words is "nine hundred ninety-nine million, nine hundred ninety-eight thousand, four hundred ninety-six".