2301780 has 72 divisors (see below), whose sum is σ = 7009632. Its totient is φ = 564096.

The previous prime is 2301779. The next prime is 2301787. The reversal of 2301780 is 871032.

2301780 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 (2301787) 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 23 ways as a sum of consecutive naturals, for example, 10027 + ... + 10253.

It is an arithmetic number, because the mean of its divisors is an integer number (97356).

2^2301780 is an apocalyptic number.

2301780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2301780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3504816).

2301780 is an abundant number, since it is smaller than the sum of its proper divisors (4707852).

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

2301780 is a wasteful number, since it uses less digits than its factorization.

2301780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 2301780 is about 1517.1618239331. The cubic root of 2301780 is about 132.0346557307.

It can be divided in two parts, 2301 and 780, that added together give a triangular number (3081 = T₇₈).

The spelling of 2301780 in words is "two million, three hundred one thousand, seven hundred eighty".