41219821 has 4 divisors (see below), whose sum is σ = 41313312. Its totient is φ = 41126332.

The previous prime is 41219809. The next prime is 41219833. The reversal of 41219821 is 12891214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (41219809) and next prime (41219833).

It is a cyclic number.

It is not a de Polignac number, because 41219821 - 2⁷ = 41219693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41219821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41219851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46081 + ... + 46966.

It is an arithmetic number, because the mean of its divisors is an integer number (10328328).

Almost surely, 2^41219821 is an apocalyptic number.

It is an amenable number.

41219821 is a deficient number, since it is larger than the sum of its proper divisors (93491).

41219821 is an equidigital number, since it uses as much as digits as its factorization.

41219821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93490.

The product of its digits is 1152, while the sum is 28.

The square root of 41219821 is about 6420.2664274935. The cubic root of 41219821 is about 345.4368784531.

The spelling of 41219821 in words is "forty-one million, two hundred nineteen thousand, eight hundred twenty-one".