1808297312 has 12 divisors (see below), whose sum is σ = 3560085396. Its totient is φ = 904148640.

The previous prime is 1808297299. The next prime is 1808297321. The reversal of 1808297312 is 2137928081.

It is a self number, because there is not a number n which added to its sum of digits gives 1808297312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28254614 + ... + 28254677.

It is an arithmetic number, because the mean of its divisors is an integer number (296673783).

Almost surely, 2^1808297312 is an apocalyptic number.

It is an amenable number.

1808297312 is a deficient number, since it is larger than the sum of its proper divisors (1751788084).

1808297312 is an equidigital number, since it uses as much as digits as its factorization.

1808297312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56509301 (or 56509293 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1808297312 is about 42524.0792022590. The cubic root of 1808297312 is about 1218.3066429183.

The spelling of 1808297312 in words is "one billion, eight hundred eight million, two hundred ninety-seven thousand, three hundred twelve".