71272068 has 72 divisors (see below), whose sum is σ = 197188992. Its totient is φ = 19970496.

The previous prime is 71272067. The next prime is 71272073. The reversal of 71272068 is 86027217.

It is not an unprimeable number, because it can be changed into a prime (71272067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30021 + ... + 32307.

It is an arithmetic number, because the mean of its divisors is an integer number (2738736).

Almost surely, 2^71272068 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 71272068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98594496).

71272068 is an abundant number, since it is smaller than the sum of its proper divisors (125916924).

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

71272068 is a wasteful number, since it uses less digits than its factorization.

71272068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 71272068 is about 8442.2786023680. The cubic root of 71272068 is about 414.6100134667.

The spelling of 71272068 in words is "seventy-one million, two hundred seventy-two thousand, sixty-eight".