404041331 has 8 divisors (see below), whose sum is σ = 408265920. Its totient is φ = 399828352.

The previous prime is 404041307. The next prime is 404041357. The reversal of 404041331 is 133140404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-404041331 is a prime.

It is a super-2 number, since 2×404041331² = 326498794312503122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404041301) 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, 78761 + ... + 83733.

It is an arithmetic number, because the mean of its divisors is an integer number (51033240).

Almost surely, 2^404041331 is an apocalyptic number.

404041331 is a deficient number, since it is larger than the sum of its proper divisors (4224589).

404041331 is a wasteful number, since it uses less digits than its factorization.

404041331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 404041331 is about 20100.7793629998. The cubic root of 404041331 is about 739.2793879771.

Adding to 404041331 its reverse (133140404), we get a palindrome (537181735).

The spelling of 404041331 in words is "four hundred four million, forty-one thousand, three hundred thirty-one".