404518030 has 24 divisors (see below), whose sum is σ = 847012248. Its totient is φ = 138691728.

The previous prime is 404518001. The next prime is 404518031. The reversal of 404518030 is 30815404.

It is a junction number, because it is equal to n+sod(n) for n = 404517986 and 404518004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404518031) 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 11 ways as a sum of consecutive naturals, for example, 412284 + ... + 413263.

It is an arithmetic number, because the mean of its divisors is an integer number (35292177).

Almost surely, 2^404518030 is an apocalyptic number.

404518030 is an abundant number, since it is smaller than the sum of its proper divisors (442494218).

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

404518030 is a wasteful number, since it uses less digits than its factorization.

404518030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825568 (or 825561 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 404518030 is about 20112.6335918497. The cubic root of 404518030 is about 739.5700143833.

The spelling of 404518030 in words is "four hundred four million, five hundred eighteen thousand, thirty".