41721408 has 84 divisors (see below), whose sum is σ = 120833388. Its totient is φ = 13762560.

The previous prime is 41721403. The next prime is 41721409. The reversal of 41721408 is 80412714.

It can be written as a sum of positive squares in 2 ways, for example, as 17040384 + 24681024 = 4128^2 + 4968^2 .

It is not an unprimeable number, because it can be changed into a prime (41721403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64768 + ... + 65408.

Almost surely, 2^41721408 is an apocalyptic number.

41721408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41721408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60416694).

41721408 is an abundant number, since it is smaller than the sum of its proper divisors (79111980).

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

41721408 is a wasteful number, since it uses less digits than its factorization.

41721408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 41721408 is about 6459.2110973400. The cubic root of 41721408 is about 346.8323928188.

The spelling of 41721408 in words is "forty-one million, seven hundred twenty-one thousand, four hundred eight".