404440332 has 12 divisors (see below), whose sum is σ = 943694136. Its totient is φ = 134813440.

The previous prime is 404440331. The next prime is 404440343. The reversal of 404440332 is 233044404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (404440331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16851669 + ... + 16851692.

It is an arithmetic number, because the mean of its divisors is an integer number (78641178).

Almost surely, 2^404440332 is an apocalyptic number.

It is an amenable number.

404440332 is an abundant number, since it is smaller than the sum of its proper divisors (539253804).

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

404440332 is a wasteful number, since it uses less digits than its factorization.

404440332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33703368 (or 33703366 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 404440332 is about 20110.7019270835. The cubic root of 404440332 is about 739.5226602597.

Adding to 404440332 its reverse (233044404), we get a palindrome (637484736).

The spelling of 404440332 in words is "four hundred four million, four hundred forty thousand, three hundred thirty-two".