7842618 has 48 divisors (see below), whose sum is σ = 19730880. Its totient is φ = 2204928.

The previous prime is 7842617. The next prime is 7842619. The reversal of 7842618 is 8162487.

It is an interprime number because it is at equal distance from previous prime (7842617) and next prime (7842619).

It is not an unprimeable number, because it can be changed into a prime (7842617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7978 + ... + 8906.

It is an arithmetic number, because the mean of its divisors is an integer number (411060).

Almost surely, 2^7842618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7842618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9865440).

7842618 is an abundant number, since it is smaller than the sum of its proper divisors (11888262).

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

7842618 is a wasteful number, since it uses less digits than its factorization.

7842618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 1008 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 7842618 is about 2800.4674609786. The cubic root of 7842618 is about 198.6797877065.

The spelling of 7842618 in words is "seven million, eight hundred forty-two thousand, six hundred eighteen".