1109498880 has 352 divisors, whose sum is σ = 4301254656. Its totient is φ = 238288896.

The previous prime is 1109498869. The next prime is 1109498881. The reversal of 1109498880 is 888949011.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109498881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1827537 + ... + 1828143.

Almost surely, 2^1109498880 is an apocalyptic number.

1109498880 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 1109498880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2150627328).

1109498880 is an abundant number, since it is smaller than the sum of its proper divisors (3191755776).

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

1109498880 is a wasteful number, since it uses less digits than its factorization.

1109498880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 48.

The square root of 1109498880 is about 33309.1410876954. The cubic root of 1109498880 is about 1035.2429684663.

The spelling of 1109498880 in words is "one billion, one hundred nine million, four hundred ninety-eight thousand, eight hundred eighty".