71330382 has 20 divisors (see below), whose sum is σ = 159833256. Its totient is φ = 23776740.

The previous prime is 71330381. The next prime is 71330393. The reversal of 71330382 is 28303317.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71330381) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 219994 + ... + 220317.

Almost surely, 2^71330382 is an apocalyptic number.

71330382 is an abundant number, since it is smaller than the sum of its proper divisors (88502874).

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

71330382 is a wasteful number, since it uses less digits than its factorization.

71330382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440325 (or 440316 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 71330382 is about 8445.7315846527. The cubic root of 71330382 is about 414.7230590494.

Adding to 71330382 its reverse (28303317), we get a palindrome (99633699).

The spelling of 71330382 in words is "seventy-one million, three hundred thirty thousand, three hundred eighty-two".