1918339008 has 28 divisors (see below), whose sum is σ = 5075605800. Its totient is φ = 639446272.

The previous prime is 1918339001. The next prime is 1918339043. The reversal of 1918339008 is 8009338191.

It is a happy number.

It is a super-2 number, since 2×1918339008² = 7360049099228848128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918339001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4995483 + ... + 4995866.

Almost surely, 2^1918339008 is an apocalyptic number.

It is an amenable number.

1918339008 is an abundant number, since it is smaller than the sum of its proper divisors (3157266792).

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

1918339008 is an equidigital number, since it uses as much as digits as its factorization.

1918339008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9991364 (or 9991354 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 1918339008 is about 43798.8471081146. The cubic root of 1918339008 is about 1242.5344900665.

The spelling of 1918339008 in words is "one billion, nine hundred eighteen million, three hundred thirty-nine thousand, eight".