4385945 has 8 divisors (see below), whose sum is σ = 5305344. Its totient is φ = 3480624.

The previous prime is 4385923. The next prime is 4385947. The reversal of 4385945 is 5495834.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4385945 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4385899 and 4385908.

It is not an unprimeable number, because it can be changed into a prime (4385947) 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 7 ways as a sum of consecutive naturals, for example, 2819 + ... + 4088.

It is an arithmetic number, because the mean of its divisors is an integer number (663168).

Almost surely, 2^4385945 is an apocalyptic number.

It is an amenable number.

4385945 is a deficient number, since it is larger than the sum of its proper divisors (919399).

4385945 is a wasteful number, since it uses less digits than its factorization.

4385945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039.

The product of its digits is 86400, while the sum is 38.

The square root of 4385945 is about 2094.2647874612. The cubic root of 4385945 is about 163.6895898214.

The spelling of 4385945 in words is "four million, three hundred eighty-five thousand, nine hundred forty-five".