13440375 has 48 divisors (see below), whose sum is σ = 26120640. Its totient is φ = 6609600.

The previous prime is 13440341. The next prime is 13440379. The reversal of 13440375 is 57304431.

It is not a de Polignac number, because 13440375 - 2¹⁰ = 13439351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440379) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14166 + ... + 15084.

It is an arithmetic number, because the mean of its divisors is an integer number (544180).

Almost surely, 2^13440375 is an apocalyptic number.

13440375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13440375 is a deficient number, since it is larger than the sum of its proper divisors (12680265).

13440375 is a wasteful number, since it uses less digits than its factorization.

13440375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 13440375 is about 3666.1117004259. Note that the first 3 decimals coincide. The cubic root of 13440375 is about 237.7590893704.

The spelling of 13440375 in words is "thirteen million, four hundred forty thousand, three hundred seventy-five".