423306019 has 2 divisors, whose sum is σ = 423306020. Its totient is φ = 423306018.

The previous prime is 423305999. The next prime is 423306041. The reversal of 423306019 is 910603324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423306019 - 2⁷ = 423305891 is a prime.

It is a super-2 number, since 2×423306019² = 358375971443256722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423306419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211653009 + 211653010.

It is an arithmetic number, because the mean of its divisors is an integer number (211653010).

Almost surely, 2^423306019 is an apocalyptic number.

423306019 is a deficient number, since it is larger than the sum of its proper divisors (1).

423306019 is an equidigital number, since it uses as much as digits as its factorization.

423306019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 423306019 is about 20574.4020326230. The cubic root of 423306019 is about 750.8470542313.

The spelling of 423306019 in words is "four hundred twenty-three million, three hundred six thousand, nineteen".