404443974 has 64 divisors (see below), whose sum is σ = 947676672. Its totient is φ = 113702400.

The previous prime is 404443973. The next prime is 404443981. The reversal of 404443974 is 479344404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404443973) 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 31 ways as a sum of consecutive naturals, for example, 77124 + ... + 82200.

It is an arithmetic number, because the mean of its divisors is an integer number (14807448).

Almost surely, 2^404443974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404443974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473838336).

404443974 is an abundant number, since it is smaller than the sum of its proper divisors (543232698).

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

404443974 is a wasteful number, since it uses less digits than its factorization.

404443974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 404443974 is about 20110.7924756833. The cubic root of 404443974 is about 739.5248800626.

The spelling of 404443974 in words is "four hundred four million, four hundred forty-three thousand, nine hundred seventy-four".