1836604345 has 8 divisors (see below), whose sum is σ = 2205088776. Its totient is φ = 1468507776.

The previous prime is 1836604339. The next prime is 1836604381. The reversal of 1836604345 is 5434066381.

It can be written as a sum of positive squares in 4 ways, for example, as 1115359609 + 721244736 = 33397^2 + 26856^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1836604345 - 2³ = 1836604337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1836604298 and 1836604307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86442 + ... + 105571.

It is an arithmetic number, because the mean of its divisors is an integer number (275636097).

Almost surely, 2^1836604345 is an apocalyptic number.

It is an amenable number.

1836604345 is a deficient number, since it is larger than the sum of its proper divisors (368484431).

1836604345 is a wasteful number, since it uses less digits than its factorization.

1836604345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193931.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 1836604345 is about 42855.6220932563. The cubic root of 1836604345 is about 1224.6308692053.

The spelling of 1836604345 in words is "one billion, eight hundred thirty-six million, six hundred four thousand, three hundred forty-five".