421042041 has 12 divisors (see below), whose sum is σ = 695053632. Its totient is φ = 240595416.

The previous prime is 421041977. The next prime is 421042049. The reversal of 421042041 is 140240124.

It is not a de Polignac number, because 421042041 - 2⁶ = 421041977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421042049) 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, 3341541 + ... + 3341666.

It is an arithmetic number, because the mean of its divisors is an integer number (57921136).

Almost surely, 2^421042041 is an apocalyptic number.

It is an amenable number.

421042041 is a deficient number, since it is larger than the sum of its proper divisors (274011591).

421042041 is a wasteful number, since it uses less digits than its factorization.

421042041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6683220 (or 6683217 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 421042041 is about 20519.3089795929. The cubic root of 421042041 is about 749.5060694482.

Adding to 421042041 its reverse (140240124), we get a palindrome (561282165).

The spelling of 421042041 in words is "four hundred twenty-one million, forty-two thousand, forty-one".