421304241 has 16 divisors (see below), whose sum is σ = 571086848. Its totient is φ = 276210000.

The previous prime is 421304231. The next prime is 421304267. The reversal of 421304241 is 142403124.

It is not a de Polignac number, because 421304241 - 2⁷ = 421304113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421304231) 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, 149556 + ... + 152346.

It is an arithmetic number, because the mean of its divisors is an integer number (35692928).

Almost surely, 2^421304241 is an apocalyptic number.

It is an amenable number.

421304241 is a deficient number, since it is larger than the sum of its proper divisors (149782607).

421304241 is a wasteful number, since it uses less digits than its factorization.

421304241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 421304241 is about 20525.6970892586. The cubic root of 421304241 is about 749.6616197992.

Adding to 421304241 its reverse (142403124), we get a palindrome (563707365).

The spelling of 421304241 in words is "four hundred twenty-one million, three hundred four thousand, two hundred forty-one".