13023906 has 48 divisors (see below), whose sum is σ = 31299840. Its totient is φ = 3598560.

The previous prime is 13023893. The next prime is 13023919. The reversal of 13023906 is 60932031.

13023906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13023893) and next prime (13023919).

13023906 is a modest number, since divided by 3906 gives 1302 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8400 + ... + 9828.

It is an arithmetic number, because the mean of its divisors is an integer number (652080).

Almost surely, 2^13023906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13023906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15649920).

13023906 is an abundant number, since it is smaller than the sum of its proper divisors (18275934).

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

13023906 is a wasteful number, since it uses less digits than its factorization.

13023906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1472 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 13023906 is about 3608.8649185028. The cubic root of 13023906 is about 235.2775113010.

Adding to 13023906 its reverse (60932031), we get a palindrome (73955937).

The spelling of 13023906 in words is "thirteen million, twenty-three thousand, nine hundred six".