1808707968 has 160 divisors (see below), whose sum is σ = 5509221960. Its totient is φ = 588736512.

The previous prime is 1808707937. The next prime is 1808707969. The reversal of 1808707968 is 8697078081.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808707969) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 443796 + ... + 447852.

Almost surely, 2^1808707968 is an apocalyptic number.

1808707968 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 1808707968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2754610980).

1808707968 is an abundant number, since it is smaller than the sum of its proper divisors (3700513992).

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

1808707968 is an equidigital number, since it uses as much as digits as its factorization.

1808707968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126 (or 4105 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The square root of 1808707968 is about 42528.9074395287. The cubic root of 1808707968 is about 1218.3988598824.

The spelling of 1808707968 in words is "one billion, eight hundred eight million, seven hundred seven thousand, nine hundred sixty-eight".