4138618 has 16 divisors (see below), whose sum is σ = 7129440. Its totient is φ = 1782000.

The previous prime is 4138609. The next prime is 4138627. The reversal of 4138618 is 8168314.

It is an interprime number because it is at equal distance from previous prime (4138609) and next prime (4138627).

It is a self number, because there is not a number n which added to its sum of digits gives 4138618.

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, 4533 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (445590).

Almost surely, 2^4138618 is an apocalyptic number.

4138618 is a deficient number, since it is larger than the sum of its proper divisors (2990822).

4138618 is a wasteful number, since it uses less digits than its factorization.

4138618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9933.

The product of its digits is 4608, while the sum is 31.

The square root of 4138618 is about 2034.3593586188. The cubic root of 4138618 is about 160.5530083092.

The spelling of 4138618 in words is "four million, one hundred thirty-eight thousand, six hundred eighteen".