404440422 has 16 divisors (see below), whose sum is σ = 851453760. Its totient is φ = 127717992.

The previous prime is 404440417. The next prime is 404440423. The reversal of 404440422 is 224044404.

It is a junction number, because it is equal to n+sod(n) for n = 404440392 and 404440401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404440423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1773748 + ... + 1773975.

It is an arithmetic number, because the mean of its divisors is an integer number (53215860).

Almost surely, 2^404440422 is an apocalyptic number.

404440422 is an abundant number, since it is smaller than the sum of its proper divisors (447013338).

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

404440422 is a wasteful number, since it uses less digits than its factorization.

404440422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547747.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 404440422 is about 20110.7041646980. The cubic root of 404440422 is about 739.5227151149.

Adding to 404440422 its reverse (224044404), we get a palindrome (628484826).

The spelling of 404440422 in words is "four hundred four million, four hundred forty thousand, four hundred twenty-two".