404103220 has 24 divisors (see below), whose sum is σ = 849023784. Its totient is φ = 161563776.

The previous prime is 404103199. The next prime is 404103239. The reversal of 404103220 is 22301404.

It can be written as a sum of positive squares in 4 ways, for example, as 15776784 + 388326436 = 3972^2 + 19706^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404103194 and 404103203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57414 + ... + 64066.

It is an arithmetic number, because the mean of its divisors is an integer number (35375991).

Almost surely, 2^404103220 is an apocalyptic number.

It is an amenable number.

404103220 is an abundant number, since it is smaller than the sum of its proper divisors (444920564).

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

404103220 is a wasteful number, since it uses less digits than its factorization.

404103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699 (or 9697 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 404103220 is about 20102.3187717238. The cubic root of 404103220 is about 739.3171324046.

Adding to 404103220 its reverse (22301404), we get a palindrome (426404624).

The spelling of 404103220 in words is "four hundred four million, one hundred three thousand, two hundred twenty".