404222025 has 12 divisors (see below), whose sum is σ = 668313872. Its totient is φ = 215585040.

The previous prime is 404221967. The next prime is 404222053. The reversal of 404222025 is 520222404.

It is not a de Polignac number, because 404222025 - 2¹⁵ = 404189257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404221992 and 404222010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2694739 + ... + 2694888.

Almost surely, 2^404222025 is an apocalyptic number.

It is an amenable number.

404222025 is a deficient number, since it is larger than the sum of its proper divisors (264091847).

404222025 is a wasteful number, since it uses less digits than its factorization.

404222025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389640 (or 5389635 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 404222025 is about 20105.2735619290. The cubic root of 404222025 is about 739.3895775633.

Adding to 404222025 its reverse (520222404), we get a palindrome (924444429).

The spelling of 404222025 in words is "four hundred four million, two hundred twenty-two thousand, twenty-five".