2181446 has 16 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 1033920.

The previous prime is 2181419. The next prime is 2181449. The reversal of 2181446 is 6441812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2181449) 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, 2675 + ... + 3393.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

2^2181446 is an apocalyptic number.

2181446 is a deficient number, since it is larger than the sum of its proper divisors (1265914).

2181446 is a wasteful number, since it uses less digits than its factorization.

2181446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799.

The product of its digits is 1536, while the sum is 26.

The square root of 2181446 is about 1476.9719022378. The cubic root of 2181446 is about 129.6924881519.

The spelling of 2181446 in words is "two million, one hundred eighty-one thousand, four hundred forty-six".