404021341 has 4 divisors (see below), whose sum is σ = 408889152. Its totient is φ = 399153532.

The previous prime is 404021333. The next prime is 404021363. The reversal of 404021341 is 143120404.

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 404021341 - 2³ = 404021333 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 (404021041) 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, 2433781 + ... + 2433946.

It is an arithmetic number, because the mean of its divisors is an integer number (102222288).

Almost surely, 2^404021341 is an apocalyptic number.

It is an amenable number.

404021341 is a deficient number, since it is larger than the sum of its proper divisors (4867811).

404021341 is an equidigital number, since it uses as much as digits as its factorization.

404021341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867810.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 404021341 is about 20100.2821124481. The cubic root of 404021341 is about 739.2671957932.

Adding to 404021341 its reverse (143120404), we get a palindrome (547141745).

The spelling of 404021341 in words is "four hundred four million, twenty-one thousand, three hundred forty-one".