13858385 has 8 divisors (see below), whose sum is σ = 16669800. Its totient is φ = 11060224.

The previous prime is 13858381. The next prime is 13858409. The reversal of 13858385 is 58385831.

It can be written as a sum of positive squares in 4 ways, for example, as 12544 + 13845841 = 112^2 + 3721^2 .

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 13858385 - 2² = 13858381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13858381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (2083725).

Almost surely, 2^13858385 is an apocalyptic number.

It is an amenable number.

13858385 is a deficient number, since it is larger than the sum of its proper divisors (2811415).

13858385 is an equidigital number, since it uses as much as digits as its factorization.

13858385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627.

The product of its digits is 115200, while the sum is 41.

The square root of 13858385 is about 3722.6851867973. The cubic root of 13858385 is about 240.1988225131.

The spelling of 13858385 in words is "thirteen million, eight hundred fifty-eight thousand, three hundred eighty-five".