2273780 has 24 divisors (see below), whose sum is σ = 4983552. Its totient is φ = 869792.

The previous prime is 2273771. The next prime is 2273783. The reversal of 2273780 is 873722.

2273780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273783) 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 7 ways as a sum of consecutive naturals, for example, 2012 + ... + 2931.

It is an arithmetic number, because the mean of its divisors is an integer number (207648).

2^2273780 is an apocalyptic number.

2273780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2273780 is an abundant number, since it is smaller than the sum of its proper divisors (2709772).

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

2273780 is a wasteful number, since it uses less digits than its factorization.

2273780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 2273780 is about 1507.9058326036. The cubic root of 2273780 is about 131.4970916001.

The spelling of 2273780 in words is "two million, two hundred seventy-three thousand, seven hundred eighty".