1098623168 has 56 divisors (see below), whose sum is σ = 2348301120. Its totient is φ = 508273920.

The previous prime is 1098623161. The next prime is 1098623173. The reversal of 1098623168 is 8613268901.

It is not an unprimeable number, because it can be changed into a prime (1098623161) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41783 + ... + 62793.

Almost surely, 2^1098623168 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 1098623168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174150560).

1098623168 is an abundant number, since it is smaller than the sum of its proper divisors (1249677952).

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

1098623168 is a wasteful number, since it uses less digits than its factorization.

1098623168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21085 (or 21075 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 1098623168 is about 33145.4848810513. The cubic root of 1098623168 is about 1031.8492458515.

The spelling of 1098623168 in words is "one billion, ninety-eight million, six hundred twenty-three thousand, one hundred sixty-eight".