71804160 has 216 divisors, whose sum is σ = 260193024. Its totient is φ = 18247680.

The previous prime is 71804147. The next prime is 71804167. The reversal of 71804160 is 6140817.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71804167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264825 + ... + 265095.

Almost surely, 2^71804160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71804160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130096512).

71804160 is an abundant number, since it is smaller than the sum of its proper divisors (188388864).

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

71804160 is a wasteful number, since it uses less digits than its factorization.

71804160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 71804160 is about 8473.7335336910. The cubic root of 71804160 is about 415.6392335751.

Adding to 71804160 its reverse (6140817), we get a palindrome (77944977).

The spelling of 71804160 in words is "seventy-one million, eight hundred four thousand, one hundred sixty".