409932249 has 4 divisors (see below), whose sum is σ = 546576336. Its totient is φ = 273288164.

The previous prime is 409932241. The next prime is 409932253. The reversal of 409932249 is 942239904.

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 409932249 - 2³ = 409932241 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 409932249.

It is not an unprimeable number, because it can be changed into a prime (409932241) 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, 68322039 + ... + 68322044.

It is an arithmetic number, because the mean of its divisors is an integer number (136644084).

Almost surely, 2^409932249 is an apocalyptic number.

It is an amenable number.

409932249 is a deficient number, since it is larger than the sum of its proper divisors (136644087).

409932249 is a wasteful number, since it uses less digits than its factorization.

409932249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136644086.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 409932249 is about 20246.7836704994. The cubic root of 409932249 is about 742.8549616148.

The spelling of 409932249 in words is "four hundred nine million, nine hundred thirty-two thousand, two hundred forty-nine".