850145020 has 12 divisors (see below), whose sum is σ = 1785304584. Its totient is φ = 340058000.

The previous prime is 850145017. The next prime is 850145033. The reversal of 850145020 is 20541058.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 21253606 + ... + 21253645.

It is an arithmetic number, because the mean of its divisors is an integer number (148775382).

Almost surely, 2^850145020 is an apocalyptic number.

It is an amenable number.

850145020 is an abundant number, since it is smaller than the sum of its proper divisors (935159564).

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

850145020 is a wasteful number, since it uses less digits than its factorization.

850145020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42507260 (or 42507258 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 850145020 is about 29157.2464406363. The cubic root of 850145020 is about 947.3221058243.

Adding to 850145020 its reverse (20541058), we get a palindrome (870686078).

The spelling of 850145020 in words is "eight hundred fifty million, one hundred forty-five thousand, twenty".