423505441 has 8 divisors (see below), whose sum is σ = 445561704. Its totient is φ = 402007680.

The previous prime is 423505399. The next prime is 423505447. The reversal of 423505441 is 144505324.

It can be written as a sum of positive squares in 4 ways, for example, as 158760000 + 264745441 = 12600^2 + 16271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423505441 - 2⁹ = 423504929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423505447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138070 + ... + 141103.

It is an arithmetic number, because the mean of its divisors is an integer number (55695213).

Almost surely, 2^423505441 is an apocalyptic number.

423505441 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

423505441 is a deficient number, since it is larger than the sum of its proper divisors (22056263).

423505441 is a wasteful number, since it uses less digits than its factorization.

423505441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279251.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 423505441 is about 20579.2478239609. The cubic root of 423505441 is about 750.9649452344.

The spelling of 423505441 in words is "four hundred twenty-three million, five hundred five thousand, four hundred forty-one".