13423506 has 32 divisors (see below), whose sum is σ = 28729728. Its totient is φ = 4166400.

The previous prime is 13423499. The next prime is 13423511. The reversal of 13423506 is 60532431.

It is a happy number.

13423506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9651 + ... + 10953.

It is an arithmetic number, because the mean of its divisors is an integer number (897804).

Almost surely, 2^13423506 is an apocalyptic number.

13423506 is an abundant number, since it is smaller than the sum of its proper divisors (15306222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13423506 is a wasteful number, since it uses less digits than its factorization.

13423506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 13423506 is about 3663.8103116837. The cubic root of 13423506 is about 237.6595773351.

Adding to 13423506 its reverse (60532431), we get a palindrome (73955937).

The spelling of 13423506 in words is "thirteen million, four hundred twenty-three thousand, five hundred six".