71428588 has 48 divisors (see below), whose sum is σ = 160892928. Its totient is φ = 26928000.

The previous prime is 71428583. The next prime is 71428589. The reversal of 71428588 is 88582417.

It is not an unprimeable number, because it can be changed into a prime (71428583) 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 in 15 ways as a sum of consecutive naturals, for example, 5808 + ... + 13288.

It is an arithmetic number, because the mean of its divisors is an integer number (3351936).

Almost surely, 2^71428588 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 71428588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80446464).

71428588 is an abundant number, since it is smaller than the sum of its proper divisors (89464340).

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

71428588 is a wasteful number, since it uses less digits than its factorization.

71428588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7534 (or 7532 counting only the distinct ones).

The product of its digits is 143360, while the sum is 43.

The square root of 71428588 is about 8451.5435276640. The cubic root of 71428588 is about 414.9132987697.

The spelling of 71428588 in words is "seventy-one million, four hundred twenty-eight thousand, five hundred eighty-eight".