404834538 has 16 divisors (see below), whose sum is σ = 831552480. Its totient is φ = 131297616.

The previous prime is 404834531. The next prime is 404834543. The reversal of 404834538 is 835438404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 404834496 and 404834505.

It is not an unprimeable number, because it can be changed into a prime (404834531) 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 7 ways as a sum of consecutive naturals, for example, 911568 + ... + 912011.

It is an arithmetic number, because the mean of its divisors is an integer number (51972030).

Almost surely, 2^404834538 is an apocalyptic number.

404834538 is an abundant number, since it is smaller than the sum of its proper divisors (426717942).

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

404834538 is a wasteful number, since it uses less digits than its factorization.

404834538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823621.

The product of its (nonzero) digits is 184320, while the sum is 39.

The square root of 404834538 is about 20120.5004410924. The cubic root of 404834538 is about 739.7628519371.

The spelling of 404834538 in words is "four hundred four million, eight hundred thirty-four thousand, five hundred thirty-eight".