71808360 has 128 divisors (see below), whose sum is σ = 234178560. Its totient is φ = 17510400.

The previous prime is 71808349. The next prime is 71808371. The reversal of 71808360 is 6380817.

It is an interprime number because it is at equal distance from previous prime (71808349) and next prime (71808371).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297840 + ... + 298080.

It is an arithmetic number, because the mean of its divisors is an integer number (1829520).

Almost surely, 2^71808360 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 71808360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117089280).

71808360 is an abundant number, since it is smaller than the sum of its proper divisors (162370200).

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

71808360 is a wasteful number, since it uses less digits than its factorization.

71808360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 71808360 is about 8473.9813547116. The cubic root of 71808360 is about 415.6473373338.

The spelling of 71808360 in words is "seventy-one million, eight hundred eight thousand, three hundred sixty".