13745744 has 10 divisors (see below), whose sum is σ = 26632410. Its totient is φ = 6872864.

The previous prime is 13745737. The next prime is 13745747. The reversal of 13745744 is 44754731.

13745744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13601344 + 144400 = 3688^2 + 380^2 .

It is a super-2 number, since 2×13745744² = 377890956227072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13745747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429539 + ... + 429570.

It is an arithmetic number, because the mean of its divisors is an integer number (2663241).

Almost surely, 2^13745744 is an apocalyptic number.

It is an amenable number.

13745744 is a deficient number, since it is larger than the sum of its proper divisors (12886666).

13745744 is an equidigital number, since it uses as much as digits as its factorization.

13745744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859117 (or 859111 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 13745744 is about 3707.5253202102. The cubic root of 13745744 is about 239.5462723837.

The spelling of 13745744 in words is "thirteen million, seven hundred forty-five thousand, seven hundred forty-four".