421430411 has 4 divisors (see below), whose sum is σ = 423033072. Its totient is φ = 419827752.

The previous prime is 421430353. The next prime is 421430417. The reversal of 421430411 is 114034124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421430411 - 2²² = 417236107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421430417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800936 + ... + 801461.

It is an arithmetic number, because the mean of its divisors is an integer number (105758268).

Almost surely, 2^421430411 is an apocalyptic number.

421430411 is a deficient number, since it is larger than the sum of its proper divisors (1602661).

421430411 is a wasteful number, since it uses less digits than its factorization.

421430411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602660.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 421430411 is about 20528.7703236214. The cubic root of 421430411 is about 749.7364472493.

Adding to 421430411 its reverse (114034124), we get a palindrome (535464535).

The spelling of 421430411 in words is "four hundred twenty-one million, four hundred thirty thousand, four hundred eleven".