1098378080 has 96 divisors (see below), whose sum is σ = 2654467200. Its totient is φ = 429391872.

The previous prime is 1098378079. The next prime is 1098378097. The reversal of 1098378080 is 808738901.

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1427936 + ... + 1428704.

It is an arithmetic number, because the mean of its divisors is an integer number (27650700).

Almost surely, 2^1098378080 is an apocalyptic number.

1098378080 is a gapful number since it is divisible by the number (10) 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 1098378080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1327233600).

1098378080 is an abundant number, since it is smaller than the sum of its proper divisors (1556089120).

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

1098378080 is a wasteful number, since it uses less digits than its factorization.

1098378080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 1098378080 is about 33141.7875196858. The cubic root of 1098378080 is about 1031.7725095985.

The spelling of 1098378080 in words is "one billion, ninety-eight million, three hundred seventy-eight thousand, eighty".