42352945 has 4 divisors (see below), whose sum is σ = 50823540. Its totient is φ = 33882352.

The previous prime is 42352943. The next prime is 42352949. The reversal of 42352945 is 54925324.

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 8898289 + 33454656 = 2983^2 + 5784^2 .

It is a cyclic number.

It is not a de Polignac number, because 42352945 - 2¹ = 42352943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42352945.

It is not an unprimeable number, because it can be changed into a prime (42352943) 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, 4235290 + ... + 4235299.

It is an arithmetic number, because the mean of its divisors is an integer number (12705885).

Almost surely, 2^42352945 is an apocalyptic number.

It is an amenable number.

42352945 is a deficient number, since it is larger than the sum of its proper divisors (8470595).

42352945 is an equidigital number, since it uses as much as digits as its factorization.

42352945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470594.

The product of its digits is 43200, while the sum is 34.

The square root of 42352945 is about 6507.9140283197. The cubic root of 42352945 is about 348.5736371851.

The spelling of 42352945 in words is "forty-two million, three hundred fifty-two thousand, nine hundred forty-five".