404031404 has 12 divisors (see below), whose sum is σ = 808062864. Its totient is φ = 173156304.

The previous prime is 404031403. The next prime is 404031457. The reversal of 404031404 is 404130404.

404031404 is an admirable number.

It is a super-3 number, since 3×404031404³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (404031403) 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, 7214819 + ... + 7214874.

It is an arithmetic number, because the mean of its divisors is an integer number (67338572).

Almost surely, 2^404031404 is an apocalyptic number.

It is an amenable number.

404031404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404031404 is a wasteful number, since it uses less digits than its factorization.

404031404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14429704 (or 14429702 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 404031404 is about 20100.5324307591. The cubic root of 404031404 is about 739.2733334096.

Adding to 404031404 its reverse (404130404), we get a palindrome (808161808).

The spelling of 404031404 in words is "four hundred four million, thirty-one thousand, four hundred four".