1918008 has 48 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 601344.

The previous prime is 1918003. The next prime is 1918013. The reversal of 1918008 is 8008191.

It is an interprime number because it is at equal distance from previous prime (1918003) and next prime (1918013).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441 + ... + 2007.

It is an arithmetic number, because the mean of its divisors is an integer number (114660).

2^1918008 is an apocalyptic number.

1918008 is a gapful number since it is divisible by the number (18) 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 1918008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2751840).

1918008 is an abundant number, since it is smaller than the sum of its proper divisors (3585672).

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

1918008 is a wasteful number, since it uses less digits than its factorization.

1918008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1918008 is about 1384.9216584342. The cubic root of 1918008 is about 124.2463019815.

The spelling of 1918008 in words is "one million, nine hundred eighteen thousand, eight".