409140307 has 4 divisors (see below), whose sum is σ = 426929040. Its totient is φ = 391351576.

The previous prime is 409140301. The next prime is 409140367. The reversal of 409140307 is 703041904.

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

It is a cyclic number.

It is not a de Polignac number, because 409140307 - 2³ = 409140299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409140301) 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, 8894332 + ... + 8894377.

It is an arithmetic number, because the mean of its divisors is an integer number (106732260).

Almost surely, 2^409140307 is an apocalyptic number.

409140307 is a deficient number, since it is larger than the sum of its proper divisors (17788733).

409140307 is a wasteful number, since it uses less digits than its factorization.

409140307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17788732.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 409140307 is about 20227.2169860315. The cubic root of 409140307 is about 742.3762830901.

The spelling of 409140307 in words is "four hundred nine million, one hundred forty thousand, three hundred seven".