13744440 has 96 divisors (see below), whose sum is σ = 45367920. Its totient is φ = 3608064.

The previous prime is 13744433. The next prime is 13744441. The reversal of 13744440 is 4444731.

13744440 is digitally balanced in base 2 and base 4, because in such bases 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 (13744441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26019 + ... + 26541.

Almost surely, 2^13744440 is an apocalyptic number.

13744440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13744440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22683960).

13744440 is an abundant number, since it is smaller than the sum of its proper divisors (31623480).

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

13744440 is a wasteful number, since it uses less digits than its factorization.

13744440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 13744440 is about 3707.3494574966. The cubic root of 13744440 is about 239.5386972337.

The spelling of 13744440 in words is "thirteen million, seven hundred forty-four thousand, four hundred forty".