13403445 has 16 divisors (see below), whose sum is σ = 23395392. Its totient is φ = 6498560.

The previous prime is 13403437. The next prime is 13403447. The reversal of 13403445 is 54430431.

It is not a de Polignac number, because 13403445 - 2³ = 13403437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13403447) 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 in 15 ways as a sum of consecutive naturals, for example, 40452 + ... + 40781.

It is an arithmetic number, because the mean of its divisors is an integer number (1462212).

Almost surely, 2^13403445 is an apocalyptic number.

13403445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13403445 is a deficient number, since it is larger than the sum of its proper divisors (9991947).

13403445 is a wasteful number, since it uses less digits than its factorization.

13403445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81252.

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

The square root of 13403445 is about 3661.0715644467. The cubic root of 13403445 is about 237.5411267652.

Adding to 13403445 its reverse (54430431), we get a palindrome (67833876).

The spelling of 13403445 in words is "thirteen million, four hundred three thousand, four hundred forty-five".