1103601040 has 40 divisors (see below), whose sum is σ = 2569623480. Its totient is φ = 440795136.

The previous prime is 1103601011. The next prime is 1103601041. The reversal of 1103601040 is 401063011.

It can be written as a sum of positive squares in 4 ways, for example, as 87011584 + 1016589456 = 9328^2 + 31884^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1103601041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46992 + ... + 66448.

It is an arithmetic number, because the mean of its divisors is an integer number (64240587).

Almost surely, 2^1103601040 is an apocalyptic number.

1103601040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103601040 is an abundant number, since it is smaller than the sum of its proper divisors (1466022440).

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

1103601040 is a wasteful number, since it uses less digits than its factorization.

1103601040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20179 (or 20173 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1103601040 is about 33220.4912666866. The cubic root of 1103601040 is about 1033.4053375655.

Adding to 1103601040 its reverse (401063011), we get a palindrome (1504664051).

The spelling of 1103601040 in words is "one billion, one hundred three million, six hundred one thousand, forty".