1323886998 has 48 divisors (see below), whose sum is σ = 3097986480. Its totient is φ = 376052544.

The previous prime is 1323886981. The next prime is 1323887003. The reversal of 1323886998 is 8996883231.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 37848 + ... + 63876.

It is an arithmetic number, because the mean of its divisors is an integer number (64541385).

Almost surely, 2^1323886998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323886998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548993240).

1323886998 is an abundant number, since it is smaller than the sum of its proper divisors (1774099482).

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

1323886998 is a wasteful number, since it uses less digits than its factorization.

1323886998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26221 (or 26214 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The square root of 1323886998 is about 36385.2579762739. The cubic root of 1323886998 is about 1098.0369943176.

The spelling of 1323886998 in words is "one billion, three hundred twenty-three million, eight hundred eighty-six thousand, nine hundred ninety-eight".