420233443 has 4 divisors (see below), whose sum is σ = 480266800. Its totient is φ = 360200088.

The previous prime is 420233417. The next prime is 420233497. The reversal of 420233443 is 344332024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420233443 - 2²¹ = 418136291 is a prime.

It is a super-2 number, since 2×420233443² = 353192293231268498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420233413) 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, 30016668 + ... + 30016681.

It is an arithmetic number, because the mean of its divisors is an integer number (120066700).

Almost surely, 2^420233443 is an apocalyptic number.

420233443 is a deficient number, since it is larger than the sum of its proper divisors (60033357).

420233443 is an equidigital number, since it uses as much as digits as its factorization.

420233443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60033356.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 420233443 is about 20499.5961667541. The cubic root of 420233443 is about 749.0259610265.

Adding to 420233443 its reverse (344332024), we get a palindrome (764565467).

The spelling of 420233443 in words is "four hundred twenty million, two hundred thirty-three thousand, four hundred forty-three".