71330652 has 96 divisors (see below), whose sum is σ = 192628800. Its totient is φ = 22809600.

The previous prime is 71330641. The next prime is 71330683. The reversal of 71330652 is 25603317.

It is a happy number.

71330652 is a `hidden beast` number, since 7 + 1 + 3 + 3 + 0 + 652 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394002 + ... + 394182.

It is an arithmetic number, because the mean of its divisors is an integer number (2006550).

Almost surely, 2^71330652 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 71330652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96314400).

71330652 is an abundant number, since it is smaller than the sum of its proper divisors (121298148).

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

71330652 is a wasteful number, since it uses less digits than its factorization.

71330652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 71330652 is about 8445.7475690433. The cubic root of 71330652 is about 414.7235823191.

Adding to 71330652 its reverse (25603317), we get a palindrome (96933969).

The spelling of 71330652 in words is "seventy-one million, three hundred thirty thousand, six hundred fifty-two".