424520404 has 96 divisors (see below), whose sum is σ = 954777600. Its totient is φ = 160392960.

The previous prime is 424520359. The next prime is 424520419. The reversal of 424520404 is 404025424.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1776117 + ... + 1776355.

It is an arithmetic number, because the mean of its divisors is an integer number (9945600).

Almost surely, 2^424520404 is an apocalyptic number.

424520404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424520404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477388800).

424520404 is an abundant number, since it is smaller than the sum of its proper divisors (530257196).

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

424520404 is a wasteful number, since it uses less digits than its factorization.

424520404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 424520404 is about 20603.8929331328. The cubic root of 424520404 is about 751.5643814935.

Adding to 424520404 its reverse (404025424), we get a palindrome (828545828).

It can be divided in two parts, 4245 and 20404, that added together give a square (24649 = 157²).

The spelling of 424520404 in words is "four hundred twenty-four million, five hundred twenty thousand, four hundred four".