1804635361 has 9 divisors (see below), whose sum is σ = 1887531121. Its totient is φ = 1725238372.

The previous prime is 1804635353. The next prime is 1804635421. The reversal of 1804635361 is 1635364081.

The square root of 1804635361 is 42481.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1804635361 - 2³ = 1804635353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1804635361.

It is not an unprimeable number, because it can be changed into a prime (1804635311) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 976140 + ... + 977986.

Almost surely, 2^1804635361 is an apocalyptic number.

1804635361 is the 42481-st square number.

1804635361 is the 21241-st centered octagonal number.

It is an amenable number.

1804635361 is a deficient number, since it is larger than the sum of its proper divisors (82895760).

1804635361 is an frugal number, since it uses more digits than its factorization.

1804635361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The cubic root of 1804635361 is about 1217.4836967235.

The spelling of 1804635361 in words is "one billion, eight hundred four million, six hundred thirty-five thousand, three hundred sixty-one".