404223425 has 12 divisors (see below), whose sum is σ = 505067376. Its totient is φ = 320907600.

The previous prime is 404223401. The next prime is 404223437. The reversal of 404223425 is 524322404.

It is a happy number.

It is not a de Polignac number, because 404223425 - 2⁶ = 404223361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404223394 and 404223403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58439 + ... + 64988.

It is an arithmetic number, because the mean of its divisors is an integer number (42088948).

Almost surely, 2^404223425 is an apocalyptic number.

It is an amenable number.

404223425 is a deficient number, since it is larger than the sum of its proper divisors (100843951).

404223425 is a wasteful number, since it uses less digits than its factorization.

404223425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123568 (or 123563 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 404223425 is about 20105.3083786347. The cubic root of 404223425 is about 739.3904311735.

Adding to 404223425 its reverse (524322404), we get a palindrome (928545829).

The spelling of 404223425 in words is "four hundred four million, two hundred twenty-three thousand, four hundred twenty-five".