1101405860 has 24 divisors (see below), whose sum is σ = 2449009080. Its totient is φ = 414646784.

The previous prime is 1101405857. The next prime is 1101405871. The reversal of 1101405860 is 685041011.

It can be written as a sum of positive squares in 4 ways, for example, as 452583076 + 648822784 = 21274^2 + 25472^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1619375 + ... + 1620054.

It is an arithmetic number, because the mean of its divisors is an integer number (102042045).

Almost surely, 2^1101405860 is an apocalyptic number.

1101405860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101405860 is an abundant number, since it is smaller than the sum of its proper divisors (1347603220).

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

1101405860 is a wasteful number, since it uses less digits than its factorization.

1101405860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239455 (or 3239453 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1101405860 is about 33187.4352730066. The cubic root of 1101405860 is about 1032.7196983371.

Adding to 1101405860 its reverse (685041011), we get a palindrome (1786446871).

The spelling of 1101405860 in words is "one billion, one hundred one million, four hundred five thousand, eight hundred sixty".