13072406 has 4 divisors (see below), whose sum is σ = 19608612. Its totient is φ = 6536202.

The previous prime is 13072391. The next prime is 13072429. The reversal of 13072406 is 60427031.

13072406 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.

It is a plaindrome in base 15.

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, 3268100 + ... + 3268103.

It is an arithmetic number, because the mean of its divisors is an integer number (4902153).

Almost surely, 2^13072406 is an apocalyptic number.

13072406 is a deficient number, since it is larger than the sum of its proper divisors (6536206).

13072406 is an equidigital number, since it uses as much as digits as its factorization.

13072406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536205.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 13072406 is about 3615.5782386777. The cubic root of 13072406 is about 235.5692011629.

Adding to 13072406 its reverse (60427031), we get a palindrome (73499437).

The spelling of 13072406 in words is "thirteen million, seventy-two thousand, four hundred six".