850642190 has 32 divisors (see below), whose sum is σ = 1576157184. Its totient is φ = 330372000.

The previous prime is 850642157. The next prime is 850642193. The reversal of 850642190 is 91246058.

850642190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×850642190² = 1447184270815992200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 850642190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850642193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52565 + ... + 66815.

It is an arithmetic number, because the mean of its divisors is an integer number (49254912).

Almost surely, 2^850642190 is an apocalyptic number.

850642190 is a deficient number, since it is larger than the sum of its proper divisors (725514994).

850642190 is a wasteful number, since it uses less digits than its factorization.

850642190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14432.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 850642190 is about 29165.7708624339. The cubic root of 850642190 is about 947.5067364224.

The spelling of 850642190 in words is "eight hundred fifty million, six hundred forty-two thousand, one hundred ninety".