1804244018 has 4 divisors (see below), whose sum is σ = 2706366030. Its totient is φ = 902122008.

The previous prime is 1804243999. The next prime is 1804244021. The reversal of 1804244018 is 8104424081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1649415769 + 154828249 = 40613^2 + 12443^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451061003 + ... + 451061006.

Almost surely, 2^1804244018 is an apocalyptic number.

1804244018 is a deficient number, since it is larger than the sum of its proper divisors (902122012).

1804244018 is an equidigital number, since it uses as much as digits as its factorization.

1804244018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902122011.

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 1804244018 is about 42476.3936557707. The cubic root of 1804244018 is about 1217.3956848224.

Adding to 1804244018 its reverse (8104424081), we get a palindrome (9908668099).

The spelling of 1804244018 in words is "one billion, eight hundred four million, two hundred forty-four thousand, eighteen".