4293390445 has 4 divisors (see below), whose sum is σ = 5152068540. Its totient is φ = 3434712352.

The previous prime is 4293390407. The next prime is 4293390467. The reversal of 4293390445 is 5440933924.

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 757185289 + 3536205156 = 27517^2 + 59466^2 .

It is a cyclic number.

It is not a de Polignac number, because 4293390445 - 2²³ = 4285001837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429339040 + ... + 429339049.

It is an arithmetic number, because the mean of its divisors is an integer number (1288017135).

Almost surely, 2^4293390445 is an apocalyptic number.

It is an amenable number.

4293390445 is a deficient number, since it is larger than the sum of its proper divisors (858678095).

4293390445 is an equidigital number, since it uses as much as digits as its factorization.

4293390445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858678094.

The product of its (nonzero) digits is 466560, while the sum is 43.

The square root of 4293390445 is about 65523.9684771916. The cubic root of 4293390445 is about 1625.2997247530.

The spelling of 4293390445 in words is "four billion, two hundred ninety-three million, three hundred ninety thousand, four hundred forty-five".