2181350 has 12 divisors (see below), whose sum is σ = 4057404. Its totient is φ = 872520.

The previous prime is 2181349. The next prime is 2181359. The reversal of 2181350 is 531812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2181359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21764 + ... + 21863.

It is an arithmetic number, because the mean of its divisors is an integer number (338117).

2^2181350 is an apocalyptic number.

2181350 is a deficient number, since it is larger than the sum of its proper divisors (1876054).

2181350 is a wasteful number, since it uses less digits than its factorization.

2181350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43639 (or 43634 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2181350 is about 1476.9394029546. The cubic root of 2181350 is about 129.6905856429.

The spelling of 2181350 in words is "two million, one hundred eighty-one thousand, three hundred fifty".