1098980700 has 72 divisors (see below), whose sum is σ = 3190212480. Its totient is φ = 292094400.

The previous prime is 1098980683. The next prime is 1098980711. The reversal of 1098980700 is 70898901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87411 + ... + 99189.

Almost surely, 2^1098980700 is an apocalyptic number.

1098980700 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 1098980700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1595106240).

1098980700 is an abundant number, since it is smaller than the sum of its proper divisors (2091231780).

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

1098980700 is a wasteful number, since it uses less digits than its factorization.

1098980700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12107 (or 12100 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 1098980700 is about 33150.8778164320. The cubic root of 1098980700 is about 1031.9611674890.

The spelling of 1098980700 in words is "one billion, ninety-eight million, nine hundred eighty thousand, seven hundred".