420712235 has 4 divisors (see below), whose sum is σ = 504854688. Its totient is φ = 336569784.

The previous prime is 420712219. The next prime is 420712241. The reversal of 420712235 is 532217024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420712235 - 2⁴ = 420712219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42071219 + ... + 42071228.

It is an arithmetic number, because the mean of its divisors is an integer number (126213672).

Almost surely, 2^420712235 is an apocalyptic number.

420712235 is a deficient number, since it is larger than the sum of its proper divisors (84142453).

420712235 is an equidigital number, since it uses as much as digits as its factorization.

420712235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84142452.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 420712235 is about 20511.2709260055. The cubic root of 420712235 is about 749.3103200572.

Adding to 420712235 its reverse (532217024), we get a palindrome (952929259).

The spelling of 420712235 in words is "four hundred twenty million, seven hundred twelve thousand, two hundred thirty-five".