13305406 has 4 divisors (see below), whose sum is σ = 19958112. Its totient is φ = 6652702.

The previous prime is 13305389. The next prime is 13305421. The reversal of 13305406 is 60450331.

13305406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60450331 = 5573 ⋅10847.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3326350 + ... + 3326353.

It is an arithmetic number, because the mean of its divisors is an integer number (4989528).

Almost surely, 2^13305406 is an apocalyptic number.

13305406 is a deficient number, since it is larger than the sum of its proper divisors (6652706).

13305406 is an equidigital number, since it uses as much as digits as its factorization.

13305406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652705.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 13305406 is about 3647.6576045457. The cubic root of 13305406 is about 236.9605470002.

Adding to 13305406 its reverse (60450331), we get a palindrome (73755737).

The spelling of 13305406 in words is "thirteen million, three hundred five thousand, four hundred six".