1808030669 has 8 divisors (see below), whose sum is σ = 1852767168. Its totient is φ = 1763324640.

The previous prime is 1808030659. The next prime is 1808030687. The reversal of 1808030669 is 9660308081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1808030669 is a prime.

It is a super-3 number, since 3×1808030669³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808030659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154544 + ... + 165830.

It is an arithmetic number, because the mean of its divisors is an integer number (231595896).

Almost surely, 2^1808030669 is an apocalyptic number.

It is an amenable number.

1808030669 is a deficient number, since it is larger than the sum of its proper divisors (44736499).

1808030669 is a wasteful number, since it uses less digits than its factorization.

1808030669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15235.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1808030669 is about 42520.9438865131. The cubic root of 1808030669 is about 1218.2467580560.

The spelling of 1808030669 in words is "one billion, eight hundred eight million, thirty thousand, six hundred sixty-nine".