423505345 has 12 divisors (see below), whose sum is σ = 536364180. Its totient is φ = 320971104.

The previous prime is 423505337. The next prime is 423505349. The reversal of 423505345 is 543505324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 146482609 + 277022736 = 12103^2 + 16644^2 .

It is not a de Polignac number, because 423505345 - 2³ = 423505337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423505349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115510 + ... + 119119.

It is an arithmetic number, because the mean of its divisors is an integer number (44697015).

Almost surely, 2^423505345 is an apocalyptic number.

It is an amenable number.

423505345 is a deficient number, since it is larger than the sum of its proper divisors (112858835).

423505345 is a wasteful number, since it uses less digits than its factorization.

423505345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234672 (or 234653 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 423505345 is about 20579.2454915140. The cubic root of 423505345 is about 750.9648884916.

The spelling of 423505345 in words is "four hundred twenty-three million, five hundred five thousand, three hundred forty-five".