441421523 has 4 divisors (see below), whose sum is σ = 441466368. Its totient is φ = 441376680.

The previous prime is 441421517. The next prime is 441421537. The reversal of 441421523 is 325124144.

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 a cyclic number.

It is not a de Polignac number, because 441421523 - 2¹⁶ = 441355987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441421492 and 441421501.

It is not an unprimeable number, because it can be changed into a prime (441421553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536 + ... + 29717.

It is an arithmetic number, because the mean of its divisors is an integer number (110366592).

Almost surely, 2^441421523 is an apocalyptic number.

441421523 is a deficient number, since it is larger than the sum of its proper divisors (44845).

441421523 is a wasteful number, since it uses less digits than its factorization.

441421523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44844.

The product of its digits is 3840, while the sum is 26.

The square root of 441421523 is about 21010.0338647990. The cubic root of 441421523 is about 761.4087001904.

Adding to 441421523 its reverse (325124144), we get a palindrome (766545667).

The spelling of 441421523 in words is "four hundred forty-one million, four hundred twenty-one thousand, five hundred twenty-three".