420330275 has 6 divisors (see below), whose sum is σ = 521209572. Its totient is φ = 336264200.

The previous prime is 420330257. The next prime is 420330307. The reversal of 420330275 is 572033024.

It is a de Polignac number, because none of the positive numbers 2^k-420330275 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8406581 + ... + 8406630.

It is an arithmetic number, because the mean of its divisors is an integer number (86868262).

Almost surely, 2^420330275 is an apocalyptic number.

420330275 is a deficient number, since it is larger than the sum of its proper divisors (100879297).

420330275 is a wasteful number, since it uses less digits than its factorization.

420330275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16813221 (or 16813216 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 420330275 is about 20501.9578333387. The cubic root of 420330275 is about 749.0834878710.

Adding to 420330275 its reverse (572033024), we get a palindrome (992363299).

The spelling of 420330275 in words is "four hundred twenty million, three hundred thirty thousand, two hundred seventy-five".