423378427 has 8 divisors (see below), whose sum is σ = 430400016. Its totient is φ = 416377632.

The previous prime is 423378419. The next prime is 423378433. The reversal of 423378427 is 724873324.

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 423378427 - 2³ = 423378419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423378427.

It is not an unprimeable number, because it can be changed into a prime (423370427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38913 + ... + 48589.

It is an arithmetic number, because the mean of its divisors is an integer number (53800002).

Almost surely, 2^423378427 is an apocalyptic number.

423378427 is a deficient number, since it is larger than the sum of its proper divisors (7021589).

423378427 is an equidigital number, since it uses as much as digits as its factorization.

423378427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10397.

The product of its digits is 225792, while the sum is 40.

The square root of 423378427 is about 20576.1616196996. The cubic root of 423378427 is about 750.8898634768.

The spelling of 423378427 in words is "four hundred twenty-three million, three hundred seventy-eight thousand, four hundred twenty-seven".