1804608 has 84 divisors (see below), whose sum is σ = 5593588. Its totient is φ = 552960.

The previous prime is 1804577. The next prime is 1804609. The reversal of 1804608 is 8064081.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 1016064 = 888^2 + 1008^2 .

It is a super-2 number, since 2×1804608² = 6513220067328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804609) 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, 7368 + ... + 7608.

2^1804608 is an apocalyptic number.

1804608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1804608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2796794).

1804608 is an abundant number, since it is smaller than the sum of its proper divisors (3788980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1804608 is a wasteful number, since it uses less digits than its factorization.

1804608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1804608 is about 1343.3569890390. The cubic root of 1804608 is about 121.7477543728.

Adding to 1804608 its reverse (8064081), we get a palindrome (9868689).

It can be divided in two parts, 1 and 804608, that added together give a square (804609 = 897²).

The spelling of 1804608 in words is "one million, eight hundred four thousand, six hundred eight".