421301405 has 8 divisors (see below), whose sum is σ = 577784832. Its totient is φ = 288892368.

The previous prime is 421301389. The next prime is 421301407. The reversal of 421301405 is 504103124.

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 421301405 - 2⁴ = 421301389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421301407) 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, 6018557 + ... + 6018626.

It is an arithmetic number, because the mean of its divisors is an integer number (72223104).

Almost surely, 2^421301405 is an apocalyptic number.

It is an amenable number.

421301405 is a deficient number, since it is larger than the sum of its proper divisors (156483427).

421301405 is a wasteful number, since it uses less digits than its factorization.

421301405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12037195.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 421301405 is about 20525.6280050088. The cubic root of 421301405 is about 749.6599376853.

Adding to 421301405 its reverse (504103124), we get a palindrome (925404529).

The spelling of 421301405 in words is "four hundred twenty-one million, three hundred one thousand, four hundred five".