1804172160 has 384 divisors, whose sum is σ = 6787031040. Its totient is φ = 406425600.

The previous prime is 1804172147. The next prime is 1804172171. The reversal of 1804172160 is 612714081.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11948085 + ... + 11948235.

It is an arithmetic number, because the mean of its divisors is an integer number (17674560).

Almost surely, 2^1804172160 is an apocalyptic number.

1804172160 is a gapful number since it is divisible by the number (10) 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 1804172160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3393515520).

1804172160 is an abundant number, since it is smaller than the sum of its proper divisors (4982858880).

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

1804172160 is a wasteful number, since it uses less digits than its factorization.

1804172160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1804172160 is about 42475.5477892870. The cubic root of 1804172160 is about 1217.3795227845.

The spelling of 1804172160 in words is "one billion, eight hundred four million, one hundred seventy-two thousand, one hundred sixty".