1783364481 has 24 divisors (see below), whose sum is σ = 2732360904. Its totient is φ = 1116979200.

The previous prime is 1783364459. The next prime is 1783364489. The reversal of 1783364481 is 1844633871.

1783364481 is a `hidden beast` number, since 178 + 3 + 36 + 448 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 415548225 + 1367816256 = 20385^2 + 36984^2 .

It is not a de Polignac number, because 1783364481 - 2⁵ = 1783364449 is a prime.

It is a super-2 number, since 2×1783364481² = 6360777744184798722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1783364489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78181 + ... + 98381.

It is an arithmetic number, because the mean of its divisors is an integer number (113848371).

Almost surely, 2^1783364481 is an apocalyptic number.

It is an amenable number.

1783364481 is a deficient number, since it is larger than the sum of its proper divisors (948996423).

1783364481 is a wasteful number, since it uses less digits than its factorization.

1783364481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20801 (or 20798 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 1783364481 is about 42229.9003195603. The cubic root of 1783364481 is about 1212.6813658058.

The spelling of 1783364481 in words is "one billion, seven hundred eighty-three million, three hundred sixty-four thousand, four hundred eighty-one".