2321380 has 24 divisors (see below), whose sum is σ = 5008248. Its totient is φ = 903168.

The previous prime is 2321369. The next prime is 2321381. The reversal of 2321380 is 831232.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1478656 + 842724 = 1216^2 + 918^2 .

It is not an unprimeable number, because it can be changed into a prime (2321381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829 + ... + 2308.

It is an arithmetic number, because the mean of its divisors is an integer number (208677).

2^2321380 is an apocalyptic number.

2321380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321380 is an abundant number, since it is smaller than the sum of its proper divisors (2686868).

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

2321380 is a wasteful number, since it uses less digits than its factorization.

2321380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183 (or 3181 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2321380 is about 1523.6075610209. The cubic root of 2321380 is about 132.4083619366.

It can be divided in two parts, 2321 and 380, that added together give a triangular number (2701 = T₇₃).

The spelling of 2321380 in words is "two million, three hundred twenty-one thousand, three hundred eighty".