841342021 has 16 divisors (see below), whose sum is σ = 965843200. Its totient is φ = 726418368.

The previous prime is 841342003. The next prime is 841342031. The reversal of 841342021 is 120243148.

It is a de Polignac number, because none of the positive numbers 2^k-841342021 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 (841342031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2046 + ... + 41071.

It is an arithmetic number, because the mean of its divisors is an integer number (60365200).

Almost surely, 2^841342021 is an apocalyptic number.

It is an amenable number.

841342021 is a deficient number, since it is larger than the sum of its proper divisors (124501179).

841342021 is a wasteful number, since it uses less digits than its factorization.

841342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43228.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 841342021 is about 29005.8963143703. The cubic root of 841342021 is about 944.0410084197.

Adding to 841342021 its reverse (120243148), we get a palindrome (961585169).

The spelling of 841342021 in words is "eight hundred forty-one million, three hundred forty-two thousand, twenty-one".