2297780 has 12 divisors (see below), whose sum is σ = 4825380. Its totient is φ = 919104.

The previous prime is 2297777. The next prime is 2297797. The reversal of 2297780 is 877922.

2297780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1056784 + 1240996 = 1028^2 + 1114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2297780.

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 3 ways as a sum of consecutive naturals, for example, 57425 + ... + 57464.

It is an arithmetic number, because the mean of its divisors is an integer number (402115).

2^2297780 is an apocalyptic number.

2297780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2297780 is an abundant number, since it is smaller than the sum of its proper divisors (2527600).

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

2297780 is a wasteful number, since it uses less digits than its factorization.

2297780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114898 (or 114896 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2297780 is about 1515.8429997859. The cubic root of 2297780 is about 131.9581287459.

The spelling of 2297780 in words is "two million, two hundred ninety-seven thousand, seven hundred eighty".