404520300 has 108 divisors (see below), whose sum is σ = 1273512240. Its totient is φ = 107399040.

The previous prime is 404520289. The next prime is 404520301. The reversal of 404520300 is 3025404.

It is a happy number.

It is a super-2 number, since 2×404520300² = 327273346224180000, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (404520301) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 235846 + ... + 237554.

It is an arithmetic number, because the mean of its divisors is an integer number (11791780).

Almost surely, 2^404520300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404520300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636756120).

404520300 is an abundant number, since it is smaller than the sum of its proper divisors (868991940).

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

404520300 is a wasteful number, since it uses less digits than its factorization.

404520300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 404520300 is about 20112.6900239625. The cubic root of 404520300 is about 739.5713977752.

Adding to 404520300 its reverse (3025404), we get a palindrome (407545704).

The spelling of 404520300 in words is "four hundred four million, five hundred twenty thousand, three hundred".