13223385 has 48 divisors (see below), whose sum is σ = 27360000. Its totient is φ = 6041952.

The previous prime is 13223369. The next prime is 13223389. The reversal of 13223385 is 58332231.

13223385 is a `hidden beast` number, since 1 + 322 + 338 + 5 = 666.

It is not a de Polignac number, because 13223385 - 2⁴ = 13223369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13223389) 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 47 ways as a sum of consecutive naturals, for example, 5616 + ... + 7614.

It is an arithmetic number, because the mean of its divisors is an integer number (570000).

Almost surely, 2^13223385 is an apocalyptic number.

13223385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13223385 is an abundant number, since it is smaller than the sum of its proper divisors (14136615).

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

13223385 is a wasteful number, since it uses less digits than its factorization.

13223385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027 (or 2014 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 13223385 is about 3636.3972555264. The cubic root of 13223385 is about 236.4726296457.

The spelling of 13223385 in words is "thirteen million, two hundred twenty-three thousand, three hundred eighty-five".