420313421 has 8 divisors (see below), whose sum is σ = 482656800. Its totient is φ = 361992240.

The previous prime is 420313409. The next prime is 420313471. The reversal of 420313421 is 124313024.

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 420313421 - 2¹⁴ = 420297037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420313393 and 420313402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420313471) 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, 1005326 + ... + 1005743.

It is an arithmetic number, because the mean of its divisors is an integer number (60332100).

Almost surely, 2^420313421 is an apocalyptic number.

It is an amenable number.

420313421 is a deficient number, since it is larger than the sum of its proper divisors (62343379).

420313421 is a wasteful number, since it uses less digits than its factorization.

420313421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011099.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 420313421 is about 20501.5467953030. The cubic root of 420313421 is about 749.0734757269.

Adding to 420313421 its reverse (124313024), we get a palindrome (544626445).

The spelling of 420313421 in words is "four hundred twenty million, three hundred thirteen thousand, four hundred twenty-one".