441353421 has 8 divisors (see below), whose sum is σ = 653856960. Its totient is φ = 294235596.

The previous prime is 441353399. The next prime is 441353431. The reversal of 441353421 is 124353144.

It is a happy number.

It is not a de Polignac number, because 441353421 - 2⁶ = 441353357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 16346423 = 441353421 / (4 + 4 + 1 + 3 + 5 + 3 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441353431) 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, 8173185 + ... + 8173238.

It is an arithmetic number, because the mean of its divisors is an integer number (81732120).

Almost surely, 2^441353421 is an apocalyptic number.

It is an amenable number.

441353421 is a deficient number, since it is larger than the sum of its proper divisors (212503539).

441353421 is a wasteful number, since it uses less digits than its factorization.

441353421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16346432 (or 16346426 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 441353421 is about 21008.4131004700. The cubic root of 441353421 is about 761.3695417598.

The spelling of 441353421 in words is "four hundred forty-one million, three hundred fifty-three thousand, four hundred twenty-one".