420013335 has 32 divisors (see below), whose sum is σ = 808450560. Its totient is φ = 181899648.

The previous prime is 420013313. The next prime is 420013337. The reversal of 420013335 is 533310024.

It is not a de Polignac number, because 420013335 - 2¹¹ = 420011287 is a prime.

It is a super-2 number, since 2×420013335² = 352822403155644450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420013337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103272 + ... + 107261.

It is an arithmetic number, because the mean of its divisors is an integer number (25264080).

Almost surely, 2^420013335 is an apocalyptic number.

420013335 is a deficient number, since it is larger than the sum of its proper divisors (388437225).

420013335 is a wasteful number, since it uses less digits than its factorization.

420013335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210567.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 420013335 is about 20494.2268700237. The cubic root of 420013335 is about 748.8951643612.

Adding to 420013335 its reverse (533310024), we get a palindrome (953323359).

The spelling of 420013335 in words is "four hundred twenty million, thirteen thousand, three hundred thirty-five".