441621223 has 16 divisors (see below), whose sum is σ = 481130496. Its totient is φ = 403724160.

The previous prime is 441621221. The next prime is 441621241. The reversal of 441621223 is 322126144.

It is a happy number.

It is not a de Polignac number, because 441621223 - 2¹ = 441621221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441621221) 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, 138040 + ... + 141202.

It is an arithmetic number, because the mean of its divisors is an integer number (30070656).

Almost surely, 2^441621223 is an apocalyptic number.

441621223 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

441621223 is a deficient number, since it is larger than the sum of its proper divisors (39509273).

441621223 is a wasteful number, since it uses less digits than its factorization.

441621223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414.

The product of its digits is 2304, while the sum is 25.

The square root of 441621223 is about 21014.7858185612. The cubic root of 441621223 is about 761.5235038309.

Adding to 441621223 its reverse (322126144), we get a palindrome (763747367).

The spelling of 441621223 in words is "four hundred forty-one million, six hundred twenty-one thousand, two hundred twenty-three".