13442393 has 8 divisors (see below), whose sum is σ = 14375880. Its totient is φ = 12524800.

The previous prime is 13442381. The next prime is 13442417. The reversal of 13442393 is 39324431.

It can be written as a sum of positive squares in 4 ways, for example, as 4609609 + 8832784 = 2147^2 + 2972^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13442393 - 2¹⁰ = 13441369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13442323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2198 + ... + 5631.

It is an arithmetic number, because the mean of its divisors is an integer number (1796985).

Almost surely, 2^13442393 is an apocalyptic number.

It is an amenable number.

13442393 is a deficient number, since it is larger than the sum of its proper divisors (933487).

13442393 is a wasteful number, since it uses less digits than its factorization.

13442393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7947.

The product of its digits is 7776, while the sum is 29.

The square root of 13442393 is about 3666.3869135704. The cubic root of 13442393 is about 237.7709881910.

The spelling of 13442393 in words is "thirteen million, four hundred forty-two thousand, three hundred ninety-three".