409504499 has 4 divisors (see below), whose sum is σ = 415272240. Its totient is φ = 403736760.

The previous prime is 409504471. The next prime is 409504507. The reversal of 409504499 is 994405904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409504499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409504409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2883764 + ... + 2883905.

It is an arithmetic number, because the mean of its divisors is an integer number (103818060).

Almost surely, 2^409504499 is an apocalyptic number.

409504499 is a deficient number, since it is larger than the sum of its proper divisors (5767741).

409504499 is an equidigital number, since it uses as much as digits as its factorization.

409504499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767740.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 409504499 is about 20236.2175072319. The cubic root of 409504499 is about 742.5964906136.

The spelling of 409504499 in words is "four hundred nine million, five hundred four thousand, four hundred ninety-nine".