1103781040 has 160 divisors (see below), whose sum is σ = 2844389376. Its totient is φ = 396887040.

The previous prime is 1103781037. The next prime is 1103781047. The reversal of 1103781040 is 401873011.

It is a junction number, because it is equal to n+sod(n) for n = 1103780996 and 1103781014.

It is not an unprimeable number, because it can be changed into a prime (1103781047) 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 31 ways as a sum of consecutive naturals, for example, 2110219 + ... + 2110741.

Almost surely, 2^1103781040 is an apocalyptic number.

1103781040 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 1103781040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422194688).

1103781040 is an abundant number, since it is smaller than the sum of its proper divisors (1740608336).

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

1103781040 is a wasteful number, since it uses less digits than its factorization.

1103781040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1103781040 is about 33223.2003274820. The cubic root of 1103781040 is about 1033.4615181482.

The spelling of 1103781040 in words is "one billion, one hundred three million, seven hundred eighty-one thousand, forty".