1108433898 has 192 divisors, whose sum is σ = 3037087872. Its totient is φ = 286986240.

The previous prime is 1108433873. The next prime is 1108433903. The reversal of 1108433898 is 8983348011.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3194161 + ... + 3194507.

It is an arithmetic number, because the mean of its divisors is an integer number (15818166).

Almost surely, 2^1108433898 is an apocalyptic number.

1108433898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1108433898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518543936).

1108433898 is an abundant number, since it is smaller than the sum of its proper divisors (1928653974).

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

1108433898 is a wasteful number, since it uses less digits than its factorization.

1108433898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1108433898 is about 33293.1509172683. The cubic root of 1108433898 is about 1034.9116272652.

The spelling of 1108433898 in words is "one billion, one hundred eight million, four hundred thirty-three thousand, eight hundred ninety-eight".