1103440309 has 8 divisors (see below), whose sum is σ = 1116279360. Its totient is φ = 1090675776.

The previous prime is 1103440279. The next prime is 1103440391. The reversal of 1103440309 is 9030443011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1103440309 - 2¹³ = 1103432117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103440609) 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, 11437 + ... + 48349.

It is an arithmetic number, because the mean of its divisors is an integer number (139534920).

Almost surely, 2^1103440309 is an apocalyptic number.

It is an amenable number.

1103440309 is a deficient number, since it is larger than the sum of its proper divisors (12839051).

1103440309 is a wasteful number, since it uses less digits than its factorization.

1103440309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37259.

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

The square root of 1103440309 is about 33218.0720241257. The cubic root of 1103440309 is about 1033.3551659510.

The spelling of 1103440309 in words is "one billion, one hundred three million, four hundred forty thousand, three hundred nine".