71274064 has 40 divisors (see below), whose sum is σ = 148436928. Its totient is φ = 33031680.

The previous prime is 71274023. The next prime is 71274101. The reversal of 71274064 is 46047217.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 16269 + ... + 20179.

Almost surely, 2^71274064 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 71274064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74218464).

71274064 is an abundant number, since it is smaller than the sum of its proper divisors (77162864).

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

71274064 is a wasteful number, since it uses less digits than its factorization.

71274064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003 (or 3997 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 71274064 is about 8442.3968160707. The cubic root of 71274064 is about 414.6138838649.

The spelling of 71274064 in words is "seventy-one million, two hundred seventy-four thousand, sixty-four".