409480109 has 4 divisors (see below), whose sum is σ = 427283616. Its totient is φ = 391676604.

The previous prime is 409480103. The next prime is 409480117. The reversal of 409480109 is 901084904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 409480109 - 2⁸ = 409479853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409480103) 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, 8901719 + ... + 8901764.

It is an arithmetic number, because the mean of its divisors is an integer number (106820904).

Almost surely, 2^409480109 is an apocalyptic number.

It is an amenable number.

409480109 is a deficient number, since it is larger than the sum of its proper divisors (17803507).

409480109 is a wasteful number, since it uses less digits than its factorization.

409480109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17803506.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 409480109 is about 20235.6148658745. The cubic root of 409480109 is about 742.5817473584.

The spelling of 409480109 in words is "four hundred nine million, four hundred eighty thousand, one hundred nine".