420013333 has 4 divisors (see below), whose sum is σ = 421863840. Its totient is φ = 418162828.

The previous prime is 420013313. The next prime is 420013337. The reversal of 420013333 is 333310024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420013333 - 2¹⁷ = 419882261 is a prime.

It is a super-2 number, since 2×420013333² = 352822399795537778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420013333.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924913 + ... + 925366.

It is an arithmetic number, because the mean of its divisors is an integer number (105465960).

Almost surely, 2^420013333 is an apocalyptic number.

It is an amenable number.

420013333 is a deficient number, since it is larger than the sum of its proper divisors (1850507).

420013333 is a wasteful number, since it uses less digits than its factorization.

420013333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850506.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 420013333 is about 20494.2268212294. The cubic root of 420013333 is about 748.8951631726.

Adding to 420013333 its reverse (333310024), we get a palindrome (753323357).

The spelling of 420013333 in words is "four hundred twenty million, thirteen thousand, three hundred thirty-three".