1805472441 has 6 divisors (see below), whose sum is σ = 2607904650. Its totient is φ = 1203648288.

The previous prime is 1805472439. The next prime is 1805472443. The reversal of 1805472441 is 1442745081.

It is a happy number.

1805472441 is a `hidden beast` number, since 180 + 5 + 472 + 4 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1805472439) and next prime (1805472443).

It can be written as a sum of positive squares in only one way, i.e., 1753934400 + 51538041 = 41880^2 + 7179^2 .

It is not a de Polignac number, because 1805472441 - 2¹ = 1805472439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1805472396 and 1805472405.

It is not an unprimeable number, because it can be changed into a prime (1805472443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100304016 + ... + 100304033.

It is an arithmetic number, because the mean of its divisors is an integer number (434650775).

Almost surely, 2^1805472441 is an apocalyptic number.

It is an amenable number.

1805472441 is a deficient number, since it is larger than the sum of its proper divisors (802432209).

1805472441 is a wasteful number, since it uses less digits than its factorization.

1805472441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200608055 (or 200608052 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 1805472441 is about 42490.8512623600. The cubic root of 1805472441 is about 1217.6719108712.

The spelling of 1805472441 in words is "one billion, eight hundred five million, four hundred seventy-two thousand, four hundred forty-one".