420303213 has 12 divisors (see below), whose sum is σ = 662296128. Its totient is φ = 254729160.

The previous prime is 420303203. The next prime is 420303217. The reversal of 420303213 is 312303024.

420303213 is a `hidden beast` number, since 420 + 30 + 3 + 213 = 666.

It is not a de Polignac number, because 420303213 - 2⁵ = 420303181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420303217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2122645 + ... + 2122842.

It is an arithmetic number, because the mean of its divisors is an integer number (55191344).

Almost surely, 2^420303213 is an apocalyptic number.

It is an amenable number.

420303213 is a deficient number, since it is larger than the sum of its proper divisors (241992915).

420303213 is a wasteful number, since it uses less digits than its factorization.

420303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245504 (or 4245501 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 420303213 is about 20501.2978369663. The cubic root of 420303213 is about 749.0674115189.

Adding to 420303213 its reverse (312303024), we get a palindrome (732606237).

The spelling of 420303213 in words is "four hundred twenty million, three hundred three thousand, two hundred thirteen".