409775245 has 16 divisors (see below), whose sum is σ = 559757952. Its totient is φ = 285060160.

The previous prime is 409775231. The next prime is 409775269. The reversal of 409775245 is 542577904.

It is not a de Polignac number, because 409775245 - 2⁷ = 409775117 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 15 ways as a sum of consecutive naturals, for example, 160702 + ... + 163231.

It is an arithmetic number, because the mean of its divisors is an integer number (34984872).

Almost surely, 2^409775245 is an apocalyptic number.

It is an amenable number.

409775245 is a deficient number, since it is larger than the sum of its proper divisors (149982707).

409775245 is a wasteful number, since it uses less digits than its factorization.

409775245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323972.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 409775245 is about 20242.9060413766. The cubic root of 409775245 is about 742.7601117189.

The spelling of 409775245 in words is "four hundred nine million, seven hundred seventy-five thousand, two hundred forty-five".