13443494 has 4 divisors (see below), whose sum is σ = 20165244. Its totient is φ = 6721746.

The previous prime is 13443487. The next prime is 13443499. The reversal of 13443494 is 49434431.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13443494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443499) by changing a digit.

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 as a sum of consecutive naturals, namely, 3360872 + ... + 3360875.

It is an arithmetic number, because the mean of its divisors is an integer number (5041311).

Almost surely, 2^13443494 is an apocalyptic number.

13443494 is a deficient number, since it is larger than the sum of its proper divisors (6721750).

13443494 is an equidigital number, since it uses as much as digits as its factorization.

13443494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721749.

The product of its digits is 20736, while the sum is 32.

The square root of 13443494 is about 3666.5370583154. The cubic root of 13443494 is about 237.7774795628. Note that the first 3 decimals are identical.

The spelling of 13443494 in words is "thirteen million, four hundred forty-three thousand, four hundred ninety-four".