461440225 has 6 divisors (see below), whose sum is σ = 572185910. Its totient is φ = 369152160.

The previous prime is 461440211. The next prime is 461440241. The reversal of 461440225 is 522044164.

It can be written as a sum of positive squares in 3 ways, for example, as 33281361 + 428158864 = 5769^2 + 20692^2 .

It is not a de Polignac number, because 461440225 - 2⁵ = 461440193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 461440193 and 461440202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9228780 + ... + 9228829.

Almost surely, 2^461440225 is an apocalyptic number.

It is an amenable number.

461440225 is a deficient number, since it is larger than the sum of its proper divisors (110745685).

461440225 is a wasteful number, since it uses less digits than its factorization.

461440225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18457619 (or 18457614 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 461440225 is about 21481.1597685041. The cubic root of 461440225 is about 772.7490565213.

Adding to 461440225 its reverse (522044164), we get a palindrome (983484389).

The spelling of 461440225 in words is "four hundred sixty-one million, four hundred forty thousand, two hundred twenty-five".