441954421 has 4 divisors (see below), whose sum is σ = 465215200. Its totient is φ = 418693644.

The previous prime is 441954391. The next prime is 441954431. The reversal of 441954421 is 124459144.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 441954421 - 2¹⁵ = 441921653 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 (441954431) 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, 11630361 + ... + 11630398.

It is an arithmetic number, because the mean of its divisors is an integer number (116303800).

Almost surely, 2^441954421 is an apocalyptic number.

It is an amenable number.

441954421 is a deficient number, since it is larger than the sum of its proper divisors (23260779).

441954421 is a wasteful number, since it uses less digits than its factorization.

441954421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23260778.

The product of its digits is 23040, while the sum is 34.

The square root of 441954421 is about 21022.7120277095. The cubic root of 441954421 is about 761.7149758494.

The spelling of 441954421 in words is "four hundred forty-one million, nine hundred fifty-four thousand, four hundred twenty-one".