1098785120 has 24 divisors (see below), whose sum is σ = 2595880224. Its totient is φ = 439513984.

The previous prime is 1098785113. The next prime is 1098785183. The reversal of 1098785120 is 215878901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3433544 + ... + 3433863.

It is an arithmetic number, because the mean of its divisors is an integer number (108161676).

Almost surely, 2^1098785120 is an apocalyptic number.

1098785120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1098785120 is an abundant number, since it is smaller than the sum of its proper divisors (1497095104).

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

1098785120 is an equidigital number, since it uses as much as digits as its factorization.

1098785120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867422 (or 6867414 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 1098785120 is about 33147.9278387051. The cubic root of 1098785120 is about 1031.8999462321.

The spelling of 1098785120 in words is "one billion, ninety-eight million, seven hundred eighty-five thousand, one hundred twenty".