225401404 has 12 divisors (see below), whose sum is σ = 396147024. Its totient is φ = 112216544.

The previous prime is 225401387. The next prime is 225401411. The reversal of 225401404 is 404104522.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119992 + ... + 121855.

It is an arithmetic number, because the mean of its divisors is an integer number (33012252).

Almost surely, 2^225401404 is an apocalyptic number.

It is an amenable number.

225401404 is a deficient number, since it is larger than the sum of its proper divisors (170745620).

225401404 is a wasteful number, since it uses less digits than its factorization.

225401404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242084 (or 242082 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 225401404 is about 15013.3741710516. The cubic root of 225401404 is about 608.5816765650.

Adding to 225401404 its reverse (404104522), we get a palindrome (629505926).

The spelling of 225401404 in words is "two hundred twenty-five million, four hundred one thousand, four hundred four".