13400744 has 32 divisors (see below), whose sum is σ = 29023680. Its totient is φ = 5681664.

The previous prime is 13400741. The next prime is 13400767. The reversal of 13400744 is 44700431.

13400744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13400741) 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, 4199 + ... + 6665.

It is an arithmetic number, because the mean of its divisors is an integer number (906990).

Almost surely, 2^13400744 is an apocalyptic number.

13400744 is a gapful number since it is divisible by the number (14) 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 13400744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14511840).

13400744 is an abundant number, since it is smaller than the sum of its proper divisors (15622936).

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

13400744 is a wasteful number, since it uses less digits than its factorization.

13400744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577 (or 2573 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 13400744 is about 3660.7026647899. The cubic root of 13400744 is about 237.5251696317.

The spelling of 13400744 in words is "thirteen million, four hundred thousand, seven hundred forty-four".