71288416 has 12 divisors (see below), whose sum is σ = 140349132. Its totient is φ = 35644192.

The previous prime is 71288407. The next prime is 71288419. The reversal of 71288416 is 61488217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71288419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113850 + ... + 1113913.

It is an arithmetic number, because the mean of its divisors is an integer number (11695761).

Almost surely, 2^71288416 is an apocalyptic number.

It is an amenable number.

71288416 is a deficient number, since it is larger than the sum of its proper divisors (69060716).

71288416 is a wasteful number, since it uses less digits than its factorization.

71288416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227773 (or 2227765 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 71288416 is about 8443.2467688680. The cubic root of 71288416 is about 414.6417113745.

The spelling of 71288416 in words is "seventy-one million, two hundred eighty-eight thousand, four hundred sixteen".