420330273 has 8 divisors (see below), whose sum is σ = 611389536. Its totient is φ = 254745600.

The previous prime is 420330257. The next prime is 420330307. The reversal of 420330273 is 372033024.

It is a happy number.

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

It is not a de Polignac number, because 420330273 - 2⁴ = 420330257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420330473) 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, 6368608 + ... + 6368673.

It is an arithmetic number, because the mean of its divisors is an integer number (76423692).

Almost surely, 2^420330273 is an apocalyptic number.

It is an amenable number.

420330273 is a deficient number, since it is larger than the sum of its proper divisors (191059263).

420330273 is a wasteful number, since it uses less digits than its factorization.

420330273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12737295.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 420330273 is about 20501.9577845629. The cubic root of 420330273 is about 749.0834866829.

Adding to 420330273 its reverse (372033024), we get a palindrome (792363297).

The spelling of 420330273 in words is "four hundred twenty million, three hundred thirty thousand, two hundred seventy-three".