13329405 has 24 divisors (see below), whose sum is σ = 23281440. Its totient is φ = 7054560.

The previous prime is 13329359. The next prime is 13329409. The reversal of 13329405 is 50492331.

13329405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13329405 - 2²³ = 4940797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13329409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5190 + ... + 7320.

It is an arithmetic number, because the mean of its divisors is an integer number (970060).

Almost surely, 2^13329405 is an apocalyptic number.

13329405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13329405 is a deficient number, since it is larger than the sum of its proper divisors (9952035).

13329405 is a wasteful number, since it uses less digits than its factorization.

13329405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281 (or 2278 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 13329405 is about 3650.9457678799. The cubic root of 13329405 is about 237.1029302410.

The spelling of 13329405 in words is "thirteen million, three hundred twenty-nine thousand, four hundred five".