423730441 has 4 divisors (see below), whose sum is σ = 424309252. Its totient is φ = 423151632.

The previous prime is 423730409. The next prime is 423730453. The reversal of 423730441 is 144037324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 189640441 + 234090000 = 13771^2 + 15300^2 .

It is a cyclic number.

It is not a de Polignac number, because 423730441 - 2⁵ = 423730409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423730481) 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, 288306 + ... + 289771.

It is an arithmetic number, because the mean of its divisors is an integer number (106077313).

Almost surely, 2^423730441 is an apocalyptic number.

It is an amenable number.

423730441 is a deficient number, since it is larger than the sum of its proper divisors (578811).

423730441 is an equidigital number, since it uses as much as digits as its factorization.

423730441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578810.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 423730441 is about 20584.7137701742. The cubic root of 423730441 is about 751.0979125923.

Adding to 423730441 its reverse (144037324), we get a palindrome (567767765).

The spelling of 423730441 in words is "four hundred twenty-three million, seven hundred thirty thousand, four hundred forty-one".