1804136 has 16 divisors (see below), whose sum is σ = 3439140. Its totient is φ = 887040.

The previous prime is 1804133. The next prime is 1804139. The reversal of 1804136 is 6314081.

It is an interprime number because it is at equal distance from previous prime (1804133) and next prime (1804139).

It can be written as a sum of positive squares in 2 ways, for example, as 1322500 + 481636 = 1150^2 + 694^2 .

It is not an unprimeable number, because it can be changed into a prime (1804133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361 + ... + 2336.

2^1804136 is an apocalyptic number.

It is an amenable number.

1804136 is a deficient number, since it is larger than the sum of its proper divisors (1635004).

1804136 is a wasteful number, since it uses less digits than its factorization.

1804136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764 (or 3760 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1804136 is about 1343.1812982617. The cubic root of 1804136 is about 121.7371389648.

The spelling of 1804136 in words is "one million, eight hundred four thousand, one hundred thirty-six".