71344320 has 56 divisors (see below), whose sum is σ = 226521264. Its totient is φ = 19024896.

The previous prime is 71344313. The next prime is 71344331. The reversal of 71344320 is 2344317.

It is a super-3 number, since 3×71344320³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36199 + ... + 38118.

Almost surely, 2^71344320 is an apocalyptic number.

It is an amenable number.

71344320 is an abundant number, since it is smaller than the sum of its proper divisors (155176944).

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

71344320 is a wasteful number, since it uses less digits than its factorization.

71344320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74337 (or 74327 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 71344320 is about 8446.5566948905. The cubic root of 71344320 is about 414.7500696695.

Adding to 71344320 its reverse (2344317), we get a palindrome (73688637).

The spelling of 71344320 in words is "seventy-one million, three hundred forty-four thousand, three hundred twenty".