41821821 has 12 divisors (see below), whose sum is σ = 62358400. Its totient is φ = 26981640.

The previous prime is 41821807. The next prime is 41821837. The reversal of 41821821 is 12812814.

It is not a de Polignac number, because 41821821 - 2⁵ = 41821789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41821861) 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, 74671 + ... + 75228.

Almost surely, 2^41821821 is an apocalyptic number.

It is an amenable number.

41821821 is a deficient number, since it is larger than the sum of its proper divisors (20536579).

41821821 is a wasteful number, since it uses less digits than its factorization.

41821821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149936 (or 149933 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 41821821 is about 6466.9792793854. The cubic root of 41821821 is about 347.1104161844.

The spelling of 41821821 in words is "forty-one million, eight hundred twenty-one thousand, eight hundred twenty-one".