1098549760 has 160 divisors (see below), whose sum is σ = 3284468352. Its totient is φ = 342343680.

The previous prime is 1098549757. The next prime is 1098549773. The reversal of 1098549760 is 679458901.

It is a tau number, because it is divible by the number of its divisors (160).

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, 194334 + ... + 199906.

Almost surely, 2^1098549760 is an apocalyptic number.

1098549760 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 1098549760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642234176).

1098549760 is an abundant number, since it is smaller than the sum of its proper divisors (2185918592).

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

1098549760 is an equidigital number, since it uses as much as digits as its factorization.

1098549760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5614 (or 5598 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 1098549760 is about 33144.3775020742. The cubic root of 1098549760 is about 1031.8262632436.

The spelling of 1098549760 in words is "one billion, ninety-eight million, five hundred forty-nine thousand, seven hundred sixty".