13449885 has 32 divisors (see below), whose sum is σ = 22249728. Its totient is φ = 6935040.

The previous prime is 13449883. The next prime is 13449889. The reversal of 13449885 is 58894431.

It is not a de Polignac number, because 13449885 - 2¹ = 13449883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13449883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77659 + ... + 77831.

It is an arithmetic number, because the mean of its divisors is an integer number (695304).

Almost surely, 2^13449885 is an apocalyptic number.

13449885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13449885 is a deficient number, since it is larger than the sum of its proper divisors (8799843).

13449885 is a wasteful number, since it uses less digits than its factorization.

13449885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its digits is 138240, while the sum is 42.

The square root of 13449885 is about 3667.4084855658. The cubic root of 13449885 is about 237.8151531796.

The spelling of 13449885 in words is "thirteen million, four hundred forty-nine thousand, eight hundred eighty-five".