420324443 has 16 divisors (see below), whose sum is σ = 540948480. Its totient is φ = 316958400.

The previous prime is 420324419. The next prime is 420324467. The reversal of 420324443 is 344423024.

It is an interprime number because it is at equal distance from previous prime (420324419) and next prime (420324467).

It is not a de Polignac number, because 420324443 - 2⁸ = 420324187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420324413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85658 + ... + 90431.

It is an arithmetic number, because the mean of its divisors is an integer number (33809280).

Almost surely, 2^420324443 is an apocalyptic number.

420324443 is a deficient number, since it is larger than the sum of its proper divisors (120624037).

420324443 is a wasteful number, since it uses less digits than its factorization.

420324443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176138.

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 420324443 is about 20501.8156025265. The cubic root of 420324443 is about 749.0800233929.

Adding to 420324443 its reverse (344423024), we get a palindrome (764747467).

The spelling of 420324443 in words is "four hundred twenty million, three hundred twenty-four thousand, four hundred forty-three".