1105729320 has 128 divisors (see below), whose sum is σ = 3534451200. Its totient is φ = 275929344.

The previous prime is 1105729309. The next prime is 1105729337. The reversal of 1105729320 is 239275011.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 186319 + ... + 192161.

It is an arithmetic number, because the mean of its divisors is an integer number (27612900).

Almost surely, 2^1105729320 is an apocalyptic number.

1105729320 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 1105729320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1767225600).

1105729320 is an abundant number, since it is smaller than the sum of its proper divisors (2428721880).

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

1105729320 is a wasteful number, since it uses less digits than its factorization.

1105729320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959 (or 5955 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1105729320 is about 33252.5084768052. The cubic root of 1105729320 is about 1034.0692138283.

The spelling of 1105729320 in words is "one billion, one hundred five million, seven hundred twenty-nine thousand, three hundred twenty".