4385020890 has 32 divisors (see below), whose sum is σ = 10768798656. Its totient is φ = 1142144640.

The previous prime is 4385020813. The next prime is 4385020973. The reversal of 4385020890 is 980205834.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1698331 + ... + 1700910.

It is an arithmetic number, because the mean of its divisors is an integer number (336524958).

Almost surely, 2^4385020890 is an apocalyptic number.

4385020890 is an abundant number, since it is smaller than the sum of its proper divisors (6383777766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4385020890 is a wasteful number, since it uses less digits than its factorization.

4385020890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399294.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 4385020890 is about 66219.4902577783. The cubic root of 4385020890 is about 1636.7809265545.

The spelling of 4385020890 in words is "four billion, three hundred eighty-five million, twenty thousand, eight hundred ninety".