13440534 has 8 divisors (see below), whose sum is σ = 26881080. Its totient is φ = 4480176.

The previous prime is 13440529. The next prime is 13440547. The reversal of 13440534 is 43504431.

It is a sphenic number, since it is the product of 3 distinct primes.

13440534 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120039 + ... + 1120050.

It is an arithmetic number, because the mean of its divisors is an integer number (3360135).

Almost surely, 2^13440534 is an apocalyptic number.

13440534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13440534 is a wasteful number, since it uses less digits than its factorization.

13440534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240094.

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

The square root of 13440534 is about 3666.1333854621. The cubic root of 13440534 is about 237.7600269322.

Adding to 13440534 its reverse (43504431), we get a palindrome (56944965).

The spelling of 13440534 in words is "thirteen million, four hundred forty thousand, five hundred thirty-four".