42328345 has 4 divisors (see below), whose sum is σ = 50794020. Its totient is φ = 33862672.

The previous prime is 42328343. The next prime is 42328369. The reversal of 42328345 is 54382324.

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 29626249 + 12702096 = 5443^2 + 3564^2 .

It is a cyclic number.

It is not a de Polignac number, because 42328345 - 2¹ = 42328343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42328343) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4232830 + ... + 4232839.

It is an arithmetic number, because the mean of its divisors is an integer number (12698505).

Almost surely, 2^42328345 is an apocalyptic number.

It is an amenable number.

42328345 is a deficient number, since it is larger than the sum of its proper divisors (8465675).

42328345 is an equidigital number, since it uses as much as digits as its factorization.

42328345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8465674.

The product of its digits is 23040, while the sum is 31.

The square root of 42328345 is about 6506.0237472668. The cubic root of 42328345 is about 348.5061363914.

The spelling of 42328345 in words is "forty-two million, three hundred twenty-eight thousand, three hundred forty-five".