406485925 has 6 divisors (see below), whose sum is σ = 504042578. Its totient is φ = 325188720.

The previous prime is 406485917. The next prime is 406485941. The reversal of 406485925 is 529584604.

It can be written as a sum of positive squares in 3 ways, for example, as 3319684 + 403166241 = 1822^2 + 20079^2 .

It is not a de Polignac number, because 406485925 - 2³ = 406485917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8129694 + ... + 8129743.

Almost surely, 2^406485925 is an apocalyptic number.

It is an amenable number.

406485925 is a deficient number, since it is larger than the sum of its proper divisors (97556653).

406485925 is a wasteful number, since it uses less digits than its factorization.

406485925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16259447 (or 16259442 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 406485925 is about 20161.4961002402. The cubic root of 406485925 is about 740.7673589748.

The spelling of 406485925 in words is "four hundred six million, four hundred eighty-five thousand, nine hundred twenty-five".