423734345 has 4 divisors (see below), whose sum is σ = 508481220. Its totient is φ = 338987472.

The previous prime is 423734309. The next prime is 423734347. The reversal of 423734345 is 543437324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112423609 + 311310736 = 10603^2 + 17644^2 .

It is a cyclic number.

It is not a de Polignac number, because 423734345 - 2²² = 419540041 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (423734347) 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, 42373430 + ... + 42373439.

It is an arithmetic number, because the mean of its divisors is an integer number (127120305).

Almost surely, 2^423734345 is an apocalyptic number.

It is an amenable number.

423734345 is a deficient number, since it is larger than the sum of its proper divisors (84746875).

423734345 is an equidigital number, since it uses as much as digits as its factorization.

423734345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84746874.

The product of its digits is 120960, while the sum is 35.

The square root of 423734345 is about 20584.8085976042. The cubic root of 423734345 is about 751.1002193082.

The spelling of 423734345 in words is "four hundred twenty-three million, seven hundred thirty-four thousand, three hundred forty-five".