1103440390 has 64 divisors (see below), whose sum is σ = 2294308800. Its totient is φ = 378653184.

The previous prime is 1103440279. The next prime is 1103440391. The reversal of 1103440390 is 930443011.

It is a happy number.

1103440390 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103440391) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 126696 + ... + 135124.

It is an arithmetic number, because the mean of its divisors is an integer number (35848575).

Almost surely, 2^1103440390 is an apocalyptic number.

1103440390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1103440390 is an abundant number, since it is smaller than the sum of its proper divisors (1190868410).

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

1103440390 is a wasteful number, since it uses less digits than its factorization.

1103440390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8521.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1103440390 is about 33218.0732433415. The cubic root of 1103440390 is about 1033.3551912361.

The spelling of 1103440390 in words is "one billion, one hundred three million, four hundred forty thousand, three hundred ninety".