13303744 has 28 divisors (see below), whose sum is σ = 26684224. Its totient is φ = 6580224.

The previous prime is 13303711. The next prime is 13303751. The reversal of 13303744 is 44730331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5137 + ... + 7279.

It is an arithmetic number, because the mean of its divisors is an integer number (953008).

Almost surely, 2^13303744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13303744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13342112).

13303744 is an abundant number, since it is smaller than the sum of its proper divisors (13380480).

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

13303744 is an equidigital number, since it uses as much as digits as its factorization.

13303744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 2242 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 13303744 is about 3647.4297799958. The cubic root of 13303744 is about 236.9506802130.

The spelling of 13303744 in words is "thirteen million, three hundred three thousand, seven hundred forty-four".