2249916 has 48 divisors (see below), whose sum is σ = 5715360. Its totient is φ = 686080.

The previous prime is 2249911. The next prime is 2249917. The reversal of 2249916 is 6199422.

It is an Ulam 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8230 + ... + 8498.

It is an arithmetic number, because the mean of its divisors is an integer number (119070).

2^2249916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2249916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2857680).

2249916 is an abundant number, since it is smaller than the sum of its proper divisors (3465444).

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

2249916 is a wasteful number, since it uses less digits than its factorization.

2249916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 332 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 2249916 is about 1499.9719997387. The cubic root of 2249916 is about 131.0354390066.

The spelling of 2249916 in words is "two million, two hundred forty-nine thousand, nine hundred sixteen".