421334041 has 2 divisors, whose sum is σ = 421334042. Its totient is φ = 421334040.

The previous prime is 421334029. The next prime is 421334071. The reversal of 421334041 is 140433124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286286400 + 135047641 = 16920^2 + 11621^2 .

It is a cyclic number.

It is not a de Polignac number, because 421334041 - 2⁵ = 421334009 is a prime.

It is not a weakly prime, because it can be changed into another prime (421334021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210667020 + 210667021.

It is an arithmetic number, because the mean of its divisors is an integer number (210667021).

Almost surely, 2^421334041 is an apocalyptic number.

It is an amenable number.

421334041 is a deficient number, since it is larger than the sum of its proper divisors (1).

421334041 is an equidigital number, since it uses as much as digits as its factorization.

421334041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 421334041 is about 20526.4229957389. The cubic root of 421334041 is about 749.6792945873.

Adding to 421334041 its reverse (140433124), we get a palindrome (561767165).

The spelling of 421334041 in words is "four hundred twenty-one million, three hundred thirty-four thousand, forty-one".