421420241 has 8 divisors (see below), whose sum is σ = 459998400. Its totient is φ = 382886640.

The previous prime is 421420217. The next prime is 421420243. The reversal of 421420241 is 142024124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421420241 - 2¹⁰ = 421419217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421420243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10475 + ... + 30863.

It is an arithmetic number, because the mean of its divisors is an integer number (57499800).

Almost surely, 2^421420241 is an apocalyptic number.

It is an amenable number.

421420241 is a deficient number, since it is larger than the sum of its proper divisors (38578159).

421420241 is a wasteful number, since it uses less digits than its factorization.

421420241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22279.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 421420241 is about 20528.5226209779. The cubic root of 421420241 is about 749.7304162963.

Adding to 421420241 its reverse (142024124), we get a palindrome (563444365).

The spelling of 421420241 in words is "four hundred twenty-one million, four hundred twenty thousand, two hundred forty-one".