409832825 has 6 divisors (see below), whose sum is σ = 508192734. Its totient is φ = 327866240.

The previous prime is 409832783. The next prime is 409832833. The reversal of 409832825 is 528238904.

It can be written as a sum of positive squares in 3 ways, for example, as 822649 + 409010176 = 907^2 + 20224^2 .

It is not a de Polignac number, because 409832825 - 2²⁰ = 408784249 is a prime.

It is a Duffinian 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, 8196632 + ... + 8196681.

It is an arithmetic number, because the mean of its divisors is an integer number (84698789).

Almost surely, 2^409832825 is an apocalyptic number.

It is an amenable number.

409832825 is a deficient number, since it is larger than the sum of its proper divisors (98359909).

409832825 is a wasteful number, since it uses less digits than its factorization.

409832825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16393323 (or 16393318 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 409832825 is about 20244.3282180467. The cubic root of 409832825 is about 742.7948999959.

The spelling of 409832825 in words is "four hundred nine million, eight hundred thirty-two thousand, eight hundred twenty-five".