41057821 has 4 divisors (see below), whose sum is σ = 46923232. Its totient is φ = 35192412.

The previous prime is 41057791. The next prime is 41057831. The reversal of 41057821 is 12875014.

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 a cyclic number.

It is not a de Polignac number, because 41057821 - 2¹³ = 41049629 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 41057821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41057831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2932695 + ... + 2932708.

It is an arithmetic number, because the mean of its divisors is an integer number (11730808).

Almost surely, 2^41057821 is an apocalyptic number.

It is an amenable number.

41057821 is a deficient number, since it is larger than the sum of its proper divisors (5865411).

41057821 is an equidigital number, since it uses as much as digits as its factorization.

41057821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5865410.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 41057821 is about 6407.6377082354. The cubic root of 41057821 is about 344.9837449458.

The spelling of 41057821 in words is "forty-one million, fifty-seven thousand, eight hundred twenty-one".