404043312 has 60 divisors (see below), whose sum is σ = 1081120040. Its totient is φ = 130023936.

The previous prime is 404043281. The next prime is 404043331. The reversal of 404043312 is 213340404.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 35364 + ... + 45372.

Almost surely, 2^404043312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404043312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540560020).

404043312 is an abundant number, since it is smaller than the sum of its proper divisors (677076728).

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

404043312 is a wasteful number, since it uses less digits than its factorization.

404043312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10078 (or 10043 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 404043312 is about 20100.8286396357. The cubic root of 404043312 is about 739.2805961952.

Adding to 404043312 its reverse (213340404), we get a palindrome (617383716).

The spelling of 404043312 in words is "four hundred four million, forty-three thousand, three hundred twelve".