1109455360 has 320 divisors, whose sum is σ = 3173984352. Its totient is φ = 368050176.

The previous prime is 1109455267. The next prime is 1109455409. The reversal of 1109455360 is 635549011.

It can be written as a sum of positive squares in 16 ways, for example, as 370485504 + 738969856 = 19248^2 + 27184^2 .

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20933094 + ... + 20933146.

Almost surely, 2^1109455360 is an apocalyptic number.

1109455360 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 1109455360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1586992176).

1109455360 is an abundant number, since it is smaller than the sum of its proper divisors (2064528992).

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

1109455360 is a wasteful number, since it uses less digits than its factorization.

1109455360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1109455360 is about 33308.4878071641. The cubic root of 1109455360 is about 1035.2294325167.

The spelling of 1109455360 in words is "one billion, one hundred nine million, four hundred fifty-five thousand, three hundred sixty".