71344408 has 32 divisors (see below), whose sum is σ = 139230000. Its totient is φ = 34231680.

The previous prime is 71344381. The next prime is 71344451. The reversal of 71344408 is 80444317.

It is a self number, because there is not a number n which added to its sum of digits gives 71344408.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 41143 + ... + 42841.

Almost surely, 2^71344408 is an apocalyptic number.

It is an amenable number.

71344408 is a deficient number, since it is larger than the sum of its proper divisors (67885592).

71344408 is a wasteful number, since it uses less digits than its factorization.

71344408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 71344408 is about 8446.5619041122. The cubic root of 71344408 is about 414.7502401946.

Subtracting 71344408 from its reverse (80444317), we obtain a palindrome (9099909).

The spelling of 71344408 in words is "seventy-one million, three hundred forty-four thousand, four hundred eight".