71163340 has 12 divisors (see below), whose sum is σ = 149443056. Its totient is φ = 28465328.

The previous prime is 71163319. The next prime is 71163347. The reversal of 71163340 is 4336117.

It is not an unprimeable number, because it can be changed into a prime (71163347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779064 + ... + 1779103.

It is an arithmetic number, because the mean of its divisors is an integer number (12453588).

Almost surely, 2^71163340 is an apocalyptic number.

It is an amenable number.

71163340 is an abundant number, since it is smaller than the sum of its proper divisors (78279716).

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

71163340 is a wasteful number, since it uses less digits than its factorization.

71163340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558176 (or 3558174 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 71163340 is about 8435.8366508604. The cubic root of 71163340 is about 414.3990722017.

Adding to 71163340 its reverse (4336117), we get a palindrome (75499457).

The spelling of 71163340 in words is "seventy-one million, one hundred sixty-three thousand, three hundred forty".