1103653040 has 40 divisors (see below), whose sum is σ = 2932565280. Its totient is φ = 378395136.

The previous prime is 1103653037. The next prime is 1103653051. The reversal of 1103653040 is 403563011.

It is a happy number.

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 = 1103652997 and 1103653015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984845 + ... + 985964.

It is an arithmetic number, because the mean of its divisors is an integer number (73314132).

Almost surely, 2^1103653040 is an apocalyptic number.

1103653040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103653040 is an abundant number, since it is smaller than the sum of its proper divisors (1828912240).

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

1103653040 is a wasteful number, since it uses less digits than its factorization.

1103653040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970829 (or 1970823 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1103653040 is about 33221.2739069410. The cubic root of 1103653040 is about 1033.4215681390.

The spelling of 1103653040 in words is "one billion, one hundred three million, six hundred fifty-three thousand, forty".