404031224 has 16 divisors (see below), whose sum is σ = 757991520. Its totient is φ = 201900160.

The previous prime is 404031211. The next prime is 404031227. The reversal of 404031224 is 422130404.

It is a junction number, because it is equal to n+sod(n) for n = 404031196 and 404031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404031227) 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, 1472 + ... + 28464.

It is an arithmetic number, because the mean of its divisors is an integer number (47374470).

Almost surely, 2^404031224 is an apocalyptic number.

It is an amenable number.

404031224 is a deficient number, since it is larger than the sum of its proper divisors (353960296).

404031224 is a wasteful number, since it uses less digits than its factorization.

404031224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28870 (or 28866 counting only the distinct ones).

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

The square root of 404031224 is about 20100.5279532653. The cubic root of 404031224 is about 739.2732236250.

Adding to 404031224 its reverse (422130404), we get a palindrome (826161628).

The spelling of 404031224 in words is "four hundred four million, thirty-one thousand, two hundred twenty-four".