423709195 has 24 divisors (see below), whose sum is σ = 629233056. Its totient is φ = 268190208.

The previous prime is 423709159. The next prime is 423709201. The reversal of 423709195 is 591907324.

It is not a de Polignac number, because 423709195 - 2⁷ = 423709067 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29902 + ... + 41731.

It is an arithmetic number, because the mean of its divisors is an integer number (26218044).

Almost surely, 2^423709195 is an apocalyptic number.

423709195 is a deficient number, since it is larger than the sum of its proper divisors (205523861).

423709195 is a wasteful number, since it uses less digits than its factorization.

423709195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71671 (or 71658 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 423709195 is about 20584.1977011493. The cubic root of 423709195 is about 751.0853589407.

The spelling of 423709195 in words is "four hundred twenty-three million, seven hundred nine thousand, one hundred ninety-five".