2249918 has 16 divisors (see below), whose sum is σ = 3801600. Its totient is φ = 989400.

The previous prime is 2249917. The next prime is 2249921. The reversal of 2249918 is 8199422.

2249918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2249911) 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, 968 + ... + 2331.

It is an arithmetic number, because the mean of its divisors is an integer number (237600).

2^2249918 is an apocalyptic number.

2249918 is a deficient number, since it is larger than the sum of its proper divisors (1551682).

2249918 is a wasteful number, since it uses less digits than its factorization.

2249918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343.

The product of its digits is 10368, while the sum is 35.

The square root of 2249918 is about 1499.9726664176. The cubic root of 2249918 is about 131.0354778334.

The spelling of 2249918 in words is "two million, two hundred forty-nine thousand, nine hundred eighteen".