13485618 has 24 divisors (see below), whose sum is σ = 29330028. Its totient is φ = 4478112.

The previous prime is 13485601. The next prime is 13485623. The reversal of 13485618 is 81658431.

13485618 is a `hidden beast` number, since 1 + 34 + 8 + 5 + 618 = 666.

13485618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12723489 + 762129 = 3567^2 + 873^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3996 + ... + 6552.

Almost surely, 2^13485618 is an apocalyptic number.

13485618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13485618 is an abundant number, since it is smaller than the sum of its proper divisors (15844410).

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

13485618 is a wasteful number, since it uses less digits than its factorization.

13485618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2855 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 13485618 is about 3672.2769503402. The cubic root of 13485618 is about 238.0255721881.

The spelling of 13485618 in words is "thirteen million, four hundred eighty-five thousand, six hundred eighteen".