71344432 has 10 divisors (see below), whose sum is σ = 138229868. Its totient is φ = 35672208.

The previous prime is 71344381. The next prime is 71344451. The reversal of 71344432 is 23444317.

It is a self number, because there is not a number n which added to its sum of digits gives 71344432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2229498 + ... + 2229529.

Almost surely, 2^71344432 is an apocalyptic number.

It is an amenable number.

71344432 is a deficient number, since it is larger than the sum of its proper divisors (66885436).

71344432 is a wasteful number, since it uses less digits than its factorization.

71344432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459035 (or 4459029 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 71344432 is about 8446.5633248085. The cubic root of 71344432 is about 414.7502867014.

Adding to 71344432 its reverse (23444317), we get a palindrome (94788749).

The spelling of 71344432 in words is "seventy-one million, three hundred forty-four thousand, four hundred thirty-two".