13440453 has 16 divisors (see below), whose sum is σ = 19923456. Its totient is φ = 8003520.

The previous prime is 13440437. The next prime is 13440461. The reversal of 13440453 is 35404431.

13440453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13440453 - 2⁴ = 13440437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4350 + ... + 6767.

It is an arithmetic number, because the mean of its divisors is an integer number (1245216).

Almost surely, 2^13440453 is an apocalyptic number.

13440453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13440453 is a deficient number, since it is larger than the sum of its proper divisors (6483003).

13440453 is a wasteful number, since it uses less digits than its factorization.

13440453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11164.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 13440453 is about 3666.1223383842. The cubic root of 13440453 is about 237.7595493073.

Adding to 13440453 its reverse (35404431), we get a palindrome (48844884).

The spelling of 13440453 in words is "thirteen million, four hundred forty thousand, four hundred fifty-three".