420047233 has 4 divisors (see below), whose sum is σ = 420097860. Its totient is φ = 419996608.

The previous prime is 420047227. The next prime is 420047239. The reversal of 420047233 is 332740024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (420047227) and next prime (420047239).

It can be written as a sum of positive squares in 2 ways, for example, as 399680064 + 20367169 = 19992^2 + 4513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420047233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420047198 and 420047207.

It is not an unprimeable number, because it can be changed into a prime (420047239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9628 + ... + 30541.

It is an arithmetic number, because the mean of its divisors is an integer number (105024465).

Almost surely, 2^420047233 is an apocalyptic number.

It is an amenable number.

420047233 is a deficient number, since it is larger than the sum of its proper divisors (50627).

420047233 is a wasteful number, since it uses less digits than its factorization.

420047233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50626.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 420047233 is about 20495.0538667260. The cubic root of 420047233 is about 748.9153108370.

Adding to 420047233 its reverse (332740024), we get a palindrome (752787257).

The spelling of 420047233 in words is "four hundred twenty million, forty-seven thousand, two hundred thirty-three".