13245744 has 40 divisors (see below), whose sum is σ = 34551360. Its totient is φ = 4372288.

The previous prime is 13245731. The next prime is 13245809. The reversal of 13245744 is 44754231.

It is a super-2 number, since 2×13245744² = 350899468227072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3847 + ... + 6425.

It is an arithmetic number, because the mean of its divisors is an integer number (863784).

Almost surely, 2^13245744 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 13245744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17275680).

13245744 is an abundant number, since it is smaller than the sum of its proper divisors (21305616).

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

13245744 is a wasteful number, since it uses less digits than its factorization.

13245744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2691 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 13245744 is about 3639.4702911275. The cubic root of 13245744 is about 236.6058359386.

Adding to 13245744 its reverse (44754231), we get a palindrome (57999975).

The spelling of 13245744 in words is "thirteen million, two hundred forty-five thousand, seven hundred forty-four".