404425224 has 240 divisors, whose sum is σ = 1350708480. Its totient is φ = 112674240.

The previous prime is 404425201. The next prime is 404425267. The reversal of 404425224 is 422524404.

404425224 is a `hidden beast` number, since 404 + 4 + 252 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1492209 + ... + 1492479.

It is an arithmetic number, because the mean of its divisors is an integer number (5627952).

Almost surely, 2^404425224 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 404425224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675354240).

404425224 is an abundant number, since it is smaller than the sum of its proper divisors (946283256).

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

404425224 is a wasteful number, since it uses less digits than its factorization.

404425224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 404425224 is about 20110.3263026735. The cubic root of 404425224 is about 739.5134517753.

Adding to 404425224 its reverse (422524404), we get a palindrome (826949628).

The spelling of 404425224 in words is "four hundred four million, four hundred twenty-five thousand, two hundred twenty-four".