409854423 has 8 divisors (see below), whose sum is σ = 596151936. Its totient is φ = 248396600.

The previous prime is 409854413. The next prime is 409854469. The reversal of 409854423 is 324458904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 409854423 - 2⁶ = 409854359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409854413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6209883 + ... + 6209948.

It is an arithmetic number, because the mean of its divisors is an integer number (74518992).

Almost surely, 2^409854423 is an apocalyptic number.

409854423 is a deficient number, since it is larger than the sum of its proper divisors (186297513).

409854423 is a wasteful number, since it uses less digits than its factorization.

409854423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12419845.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 409854423 is about 20244.8616443778. The cubic root of 409854423 is about 742.8079480824.

The spelling of 409854423 in words is "four hundred nine million, eight hundred fifty-four thousand, four hundred twenty-three".