41721568 has 48 divisors (see below), whose sum is σ = 98824320. Its totient is φ = 16937856.

The previous prime is 41721551. The next prime is 41721577. The reversal of 41721568 is 86512714.

It is a congruent number.

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, 646 + ... + 9157.

It is an arithmetic number, because the mean of its divisors is an integer number (2058840).

Almost surely, 2^41721568 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 41721568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49412160).

41721568 is an abundant number, since it is smaller than the sum of its proper divisors (57102752).

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

41721568 is a wasteful number, since it uses less digits than its factorization.

41721568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9839 (or 9831 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 41721568 is about 6459.2234827416. The cubic root of 41721568 is about 346.8328361812.

The spelling of 41721568 in words is "forty-one million, seven hundred twenty-one thousand, five hundred sixty-eight".