1105520 has 40 divisors (see below), whose sum is σ = 2770656. Its totient is φ = 407808.

The previous prime is 1105519. The next prime is 1105537. The reversal of 1105520 is 255011.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1105495 and 1105504.

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, 509 + ... + 1571.

2^1105520 is an apocalyptic number.

1105520 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 1105520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385328).

1105520 is an abundant number, since it is smaller than the sum of its proper divisors (1665136).

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

1105520 is a wasteful number, since it uses less digits than its factorization.

1105520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1105520 is about 1051.4371117666. The cubic root of 1105520 is about 103.4003958247.

The spelling of 1105520 in words is "one million, one hundred five thousand, five hundred twenty".