420204270 has 32 divisors (see below), whose sum is σ = 1022699520. Its totient is φ = 110475680.

The previous prime is 420204263. The next prime is 420204271. The reversal of 420204270 is 72402024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420204271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96510 + ... + 100769.

It is an arithmetic number, because the mean of its divisors is an integer number (31959360).

Almost surely, 2^420204270 is an apocalyptic number.

420204270 is an abundant number, since it is smaller than the sum of its proper divisors (602495250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420204270 is a wasteful number, since it uses less digits than its factorization.

420204270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197360.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 420204270 is about 20498.8846038022. The cubic root of 420204270 is about 749.0086279304.

Adding to 420204270 its reverse (72402024), we get a palindrome (492606294).

The spelling of 420204270 in words is "four hundred twenty million, two hundred four thousand, two hundred seventy".