41221320 has 128 divisors (see below), whose sum is σ = 145981440. Its totient is φ = 9112320.

The previous prime is 41221319. The next prime is 41221357. The reversal of 41221320 is 2312214.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 41221320.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25249 + ... + 26831.

It is an arithmetic number, because the mean of its divisors is an integer number (1140480).

Almost surely, 2^41221320 is an apocalyptic number.

41221320 is a gapful number since it is divisible by the number (40) 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 41221320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72990720).

41221320 is an abundant number, since it is smaller than the sum of its proper divisors (104760120).

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

41221320 is a wasteful number, since it uses less digits than its factorization.

41221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 41221320 is about 6420.3831661358. The cubic root of 41221320 is about 345.4410657881.

Adding to 41221320 its reverse (2312214), we get a palindrome (43533534).

The spelling of 41221320 in words is "forty-one million, two hundred twenty-one thousand, three hundred twenty".