2205921850 has 48 divisors (see below), whose sum is σ = 4711618080. Its totient is φ = 759931200.

The previous prime is 2205921847. The next prime is 2205921877. The reversal of 2205921850 is 581295022.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 95097 + ... + 115996.

It is an arithmetic number, because the mean of its divisors is an integer number (98158710).

Almost surely, 2^2205921850 is an apocalyptic number.

2205921850 is an abundant number, since it is smaller than the sum of its proper divisors (2505696230).

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

2205921850 is a wasteful number, since it uses less digits than its factorization.

2205921850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211135 (or 211130 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 2205921850 is about 46967.2423078043. The cubic root of 2205921850 is about 1301.7573570391.

The spelling of 2205921850 in words is "two billion, two hundred five million, nine hundred twenty-one thousand, eight hundred fifty".