2195220 has 24 divisors (see below), whose sum is σ = 6146784. Its totient is φ = 585376.

The previous prime is 2195201. The next prime is 2195233. The reversal of 2195220 is 225912.

2195220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18234 + ... + 18353.

It is an arithmetic number, because the mean of its divisors is an integer number (256116).

2^2195220 is an apocalyptic number.

2195220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2195220 is an abundant number, since it is smaller than the sum of its proper divisors (3951564).

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

2195220 is a wasteful number, since it uses less digits than its factorization.

2195220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36599 (or 36597 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2195220 is about 1481.6274835464. The cubic root of 2195220 is about 129.9648820329.

It can be divided in two parts, 2195 and 220, that added together give a triangular number (2415 = T₆₉).

The spelling of 2195220 in words is "two million, one hundred ninety-five thousand, two hundred twenty".