13906618 has 16 divisors (see below), whose sum is σ = 22814784. Its totient is φ = 6304960.

The previous prime is 13906601. The next prime is 13906637. The reversal of 13906618 is 81660931.

13906618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13746 + ... + 14722.

It is an arithmetic number, because the mean of its divisors is an integer number (1425924).

Almost surely, 2^13906618 is an apocalyptic number.

13906618 is a deficient number, since it is larger than the sum of its proper divisors (8908166).

13906618 is a wasteful number, since it uses less digits than its factorization.

13906618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13906618 is about 3729.1578137698. The cubic root of 13906618 is about 240.4771641073.

It can be divided in two parts, 1390 and 6618, that added together give a palindrome (8008).

The spelling of 13906618 in words is "thirteen million, nine hundred six thousand, six hundred eighteen".