41217820 has 72 divisors (see below), whose sum is σ = 101754576. Its totient is φ = 13982976.

The previous prime is 41217773. The next prime is 41217829. The reversal of 41217820 is 2871214.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41217829) 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, 134107 + ... + 134413.

It is an arithmetic number, because the mean of its divisors is an integer number (1413258).

Almost surely, 2^41217820 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 41217820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50877288).

41217820 is an abundant number, since it is smaller than the sum of its proper divisors (60536756).

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

41217820 is a wasteful number, since it uses less digits than its factorization.

41217820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 41217820 is about 6420.1105909478. The cubic root of 41217820 is about 345.4312886635.

The spelling of 41217820 in words is "forty-one million, two hundred seventeen thousand, eight hundred twenty".