1804543130 has 24 divisors (see below), whose sum is σ = 3517260732. Its totient is φ = 666292224.

The previous prime is 1804543109. The next prime is 1804543133. The reversal of 1804543130 is 313454081.

It can be written as a sum of positive squares in 6 ways, for example, as 39450961 + 1765092169 = 6281^2 + 42013^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1804543093 and 1804543102.

It is not an unprimeable number, because it can be changed into a prime (1804543133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 532199 + ... + 535578.

Almost surely, 2^1804543130 is an apocalyptic number.

1804543130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1804543130 is a deficient number, since it is larger than the sum of its proper divisors (1712717602).

1804543130 is a wasteful number, since it uses less digits than its factorization.

1804543130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067810 (or 1067797 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1804543130 is about 42479.9144302340. The cubic root of 1804543130 is about 1217.4629553863.

The spelling of 1804543130 in words is "one billion, eight hundred four million, five hundred forty-three thousand, one hundred thirty".