420335133 has 8 divisors (see below), whose sum is σ = 575594208. Its totient is φ = 272649744.

The previous prime is 420335131. The next prime is 420335173. The reversal of 420335133 is 331533024.

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 420335133 - 2¹ = 420335131 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420335131) 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, 1893291 + ... + 1893512.

It is an arithmetic number, because the mean of its divisors is an integer number (71949276).

Almost surely, 2^420335133 is an apocalyptic number.

It is an amenable number.

420335133 is a deficient number, since it is larger than the sum of its proper divisors (155259075).

420335133 is a wasteful number, since it uses less digits than its factorization.

420335133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786843.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 420335133 is about 20502.0763094863. The cubic root of 420335133 is about 749.0863737235.

Adding to 420335133 its reverse (331533024), we get a palindrome (751868157).

The spelling of 420335133 in words is "four hundred twenty million, three hundred thirty-five thousand, one hundred thirty-three".