420215343 has 16 divisors (see below), whose sum is σ = 590229120. Its totient is φ = 265195296.

The previous prime is 420215339. The next prime is 420215377. The reversal of 420215343 is 343512024.

It is not a de Polignac number, because 420215343 - 2² = 420215339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420215743) 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, 113721 + ... + 117357.

It is an arithmetic number, because the mean of its divisors is an integer number (36889320).

Almost surely, 2^420215343 is an apocalyptic number.

420215343 is a deficient number, since it is larger than the sum of its proper divisors (170013777).

420215343 is a wasteful number, since it uses less digits than its factorization.

420215343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 420215343 is about 20499.1546898890. The cubic root of 420215343 is about 749.0152070319.

Adding to 420215343 its reverse (343512024), we get a palindrome (763727367).

The spelling of 420215343 in words is "four hundred twenty million, two hundred fifteen thousand, three hundred forty-three".