13858445 has 8 divisors (see below), whose sum is σ = 16650744. Its totient is φ = 11073024.

The previous prime is 13858421. The next prime is 13858447. The reversal of 13858445 is 54485831.

It can be written as a sum of positive squares in 4 ways, for example, as 2114116 + 11744329 = 1454^2 + 3427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13858445 - 2⁶ = 13858381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13858399 and 13858408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13858447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5417 + ... + 7553.

It is an arithmetic number, because the mean of its divisors is an integer number (2081343).

Almost surely, 2^13858445 is an apocalyptic number.

It is an amenable number.

13858445 is a deficient number, since it is larger than the sum of its proper divisors (2792299).

13858445 is a wasteful number, since it uses less digits than its factorization.

13858445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439.

The product of its digits is 76800, while the sum is 38.

The square root of 13858445 is about 3722.6932454877. The cubic root of 13858445 is about 240.1991691602.

The spelling of 13858445 in words is "thirteen million, eight hundred fifty-eight thousand, four hundred forty-five".