71280588 has 48 divisors (see below), whose sum is σ = 174375936. Its totient is φ = 22619520.

The previous prime is 71280581. The next prime is 71280589. The reversal of 71280588 is 88508217.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (71280581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74320 + ... + 75272.

It is an arithmetic number, because the mean of its divisors is an integer number (3632832).

Almost surely, 2^71280588 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 71280588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87187968).

71280588 is an abundant number, since it is smaller than the sum of its proper divisors (103095348).

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

71280588 is a wasteful number, since it uses less digits than its factorization.

71280588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 71280588 is about 8442.7831903940. The cubic root of 71280588 is about 414.6265339010.

The spelling of 71280588 in words is "seventy-one million, two hundred eighty thousand, five hundred eighty-eight".