2195280 has 60 divisors (see below), whose sum is σ = 7374900. Its totient is φ = 585216.

The previous prime is 2195273. The next prime is 2195287. The reversal of 2195280 is 825912.

2195280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2195273) and next prime (2195287).

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 1710864 = 696^2 + 1308^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195287) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 805 + ... + 2244.

It is an arithmetic number, because the mean of its divisors is an integer number (122915).

2^2195280 is an apocalyptic number.

2195280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2195280 is an abundant number, since it is smaller than the sum of its proper divisors (5179620).

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

2195280 is a wasteful number, since it uses less digits than its factorization.

2195280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068 (or 3059 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2195280 is about 1481.6477314126. The cubic root of 2195280 is about 129.9660660937.

The spelling of 2195280 in words is "two million, one hundred ninety-five thousand, two hundred eighty".