1804080817 has 48 divisors (see below), whose sum is σ = 2458657152. Its totient is φ = 1280655360.

The previous prime is 1804080791. The next prime is 1804080869. The reversal of 1804080817 is 7180804081.

It is not a de Polignac number, because 1804080817 - 2¹¹ = 1804078769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (1804080217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9347473 + ... + 9347665.

It is an arithmetic number, because the mean of its divisors is an integer number (51222024).

Almost surely, 2^1804080817 is an apocalyptic number.

1804080817 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1804080817 is a deficient number, since it is larger than the sum of its proper divisors (654576335).

1804080817 is a wasteful number, since it uses less digits than its factorization.

1804080817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 1804080817 is about 42474.4725335112. The cubic root of 1804080817 is about 1217.3589776324.

Adding to 1804080817 its reverse (7180804081), we get a palindrome (8984884898).

The spelling of 1804080817 in words is "one billion, eight hundred four million, eighty thousand, eight hundred seventeen".