1101340440 has 96 divisors (see below), whose sum is σ = 3595391280. Its totient is φ = 292375296.

The previous prime is 1101340321. The next prime is 1101340447. The reversal of 1101340440 is 440431011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101340447) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 74982 + ... + 88458.

Almost surely, 2^1101340440 is an apocalyptic number.

1101340440 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 1101340440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1797695640).

1101340440 is an abundant number, since it is smaller than the sum of its proper divisors (2494050840).

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

1101340440 is a wasteful number, since it uses less digits than its factorization.

1101340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13721 (or 13714 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1101340440 is about 33186.4496443955. The cubic root of 1101340440 is about 1032.6992511787.

Adding to 1101340440 its reverse (440431011), we get a palindrome (1541771451).

The spelling of 1101340440 in words is "one billion, one hundred one million, three hundred forty thousand, four hundred forty".