404313030 has 144 divisors (see below), whose sum is σ = 1168195392. Its totient is φ = 96940800.

The previous prime is 404313001. The next prime is 404313037. The reversal of 404313030 is 30313404.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 404312994 and 404313012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404313037) 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 71 ways as a sum of consecutive naturals, for example, 1491795 + ... + 1492065.

It is an arithmetic number, because the mean of its divisors is an integer number (8112468).

Almost surely, 2^404313030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404313030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584097696).

404313030 is an abundant number, since it is smaller than the sum of its proper divisors (763882362).

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

404313030 is a wasteful number, since it uses less digits than its factorization.

404313030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 404313030 is about 20107.5366467402. The cubic root of 404313030 is about 739.4450611798.

Adding to 404313030 its reverse (30313404), we get a palindrome (434626434).

The spelling of 404313030 in words is "four hundred four million, three hundred thirteen thousand, thirty".