409371423 has 4 divisors (see below), whose sum is σ = 545828568. Its totient is φ = 272914280.

The previous prime is 409371421. The next prime is 409371449. The reversal of 409371423 is 324173904.

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 409371423 - 2¹ = 409371421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409371421) 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, 68228568 + ... + 68228573.

It is an arithmetic number, because the mean of its divisors is an integer number (136457142).

Almost surely, 2^409371423 is an apocalyptic number.

409371423 is a deficient number, since it is larger than the sum of its proper divisors (136457145).

409371423 is a wasteful number, since it uses less digits than its factorization.

409371423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136457144.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 409371423 is about 20232.9291749860. The cubic root of 409371423 is about 742.5160417806.

The spelling of 409371423 in words is "four hundred nine million, three hundred seventy-one thousand, four hundred twenty-three".