2850188220 has 144 divisors (see below), whose sum is σ = 9495813600. Its totient is φ = 686246400.

The previous prime is 2850188219. The next prime is 2850188239. The reversal of 2850188220 is 228810582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290190 + ... + 299850.

It is an arithmetic number, because the mean of its divisors is an integer number (65943150).

Almost surely, 2^2850188220 is an apocalyptic number.

2850188220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2850188220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4747906800).

2850188220 is an abundant number, since it is smaller than the sum of its proper divisors (6645625380).

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

2850188220 is a wasteful number, since it uses less digits than its factorization.

2850188220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9836 (or 9831 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 2850188220 is about 53387.1540728666. The cubic root of 2850188220 is about 1417.8311498282.

The spelling of 2850188220 in words is "two billion, eight hundred fifty million, one hundred eighty-eight thousand, two hundred twenty".