404423536 has 40 divisors (see below), whose sum is σ = 891978624. Its totient is φ = 175834560.

The previous prime is 404423533. The next prime is 404423561. The reversal of 404423536 is 635324404.

It is a junction number, because it is equal to n+sod(n) for n = 404423498 and 404423507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404423533) 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, 45906 + ... + 54001.

Almost surely, 2^404423536 is an apocalyptic number.

404423536 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

404423536 is an abundant number, since it is smaller than the sum of its proper divisors (487555088).

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

404423536 is a wasteful number, since it uses less digits than its factorization.

404423536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99949 (or 99943 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 404423536 is about 20110.2843341411. The cubic root of 404423536 is about 739.5124229073.

The spelling of 404423536 in words is "four hundred four million, four hundred twenty-three thousand, five hundred thirty-six".