1105280 has 64 divisors (see below), whose sum is σ = 2900880. Its totient is φ = 399360.

The previous prime is 1105271. The next prime is 1105309. The reversal of 1105280 is 825011.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6962 + ... + 7118.

2^1105280 is an apocalyptic number.

1105280 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 1105280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1450440).

1105280 is an abundant number, since it is smaller than the sum of its proper divisors (1795600).

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

1105280 is a wasteful number, since it uses less digits than its factorization.

1105280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1105280 is about 1051.3229760640. The cubic root of 1105280 is about 103.3929128029.

The spelling of 1105280 in words is "one million, one hundred five thousand, two hundred eighty".