1804065530 has 8 divisors (see below), whose sum is σ = 3247317972. Its totient is φ = 721626208.

The previous prime is 1804065503. The next prime is 1804065547. The reversal of 1804065530 is 355604081.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1798862569 + 5202961 = 42413^2 + 2281^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90203267 + ... + 90203286.

Almost surely, 2^1804065530 is an apocalyptic number.

1804065530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1804065530 is a deficient number, since it is larger than the sum of its proper divisors (1443252442).

1804065530 is a wasteful number, since it uses less digits than its factorization.

1804065530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180406560.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1804065530 is about 42474.2925779818. The cubic root of 1804065530 is about 1217.3555391650.

The spelling of 1804065530 in words is "one billion, eight hundred four million, sixty-five thousand, five hundred thirty".