1618344 has 144 divisors (see below), whose sum is σ = 5709600. Its totient is φ = 404352.

The previous prime is 1618333. The next prime is 1618367. The reversal of 1618344 is 4438161.

1618344 is a `hidden beast` number, since 1 + 618 + 3 + 44 = 666.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (2304) is a multiple of the sum of its prime factors (64).

It is a zygodrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 85167 + ... + 85185.

It is an arithmetic number, because the mean of its divisors is an integer number (39650).

2^1618344 is an apocalyptic number.

1618344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1618344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2854800).

1618344 is an abundant number, since it is smaller than the sum of its proper divisors (4091256).

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

1618344 is a wasteful number, since it uses less digits than its factorization.

1618344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 44 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1618344 is about 1272.1415015634. The cubic root of 1618344 is about 117.4059969443.

The spelling of 1618344 in words is "one million, six hundred eighteen thousand, three hundred forty-four".