1608225804 has 36 divisors (see below), whose sum is σ = 4073365296. Its totient is φ = 535003488.

The previous prime is 1608225793. The next prime is 1608225847. The reversal of 1608225804 is 4085228061.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26299 + ... + 62514.

It is an arithmetic number, because the mean of its divisors is an integer number (113149036).

Almost surely, 2^1608225804 is an apocalyptic number.

It is an amenable number.

1608225804 is an abundant number, since it is smaller than the sum of its proper divisors (2465139492).

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

1608225804 is a wasteful number, since it uses less digits than its factorization.

1608225804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89326 (or 89321 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 1608225804 is about 40102.6907326678. The cubic root of 1608225804 is about 1171.6080365619.

The spelling of 1608225804 in words is "one billion, six hundred eight million, two hundred twenty-five thousand, eight hundred four".