2217948 has 12 divisors (see below), whose sum is σ = 5175240. Its totient is φ = 739312.

The previous prime is 2217947. The next prime is 2217967. The reversal of 2217948 is 8497122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92403 + ... + 92426.

It is an arithmetic number, because the mean of its divisors is an integer number (431270).

2^2217948 is an apocalyptic number.

It is an amenable number.

2217948 is an abundant number, since it is smaller than the sum of its proper divisors (2957292).

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

2217948 is a wasteful number, since it uses less digits than its factorization.

2217948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184836 (or 184834 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 2217948 is about 1489.2776772651. The cubic root of 2217948 is about 130.4118692698.

The spelling of 2217948 in words is "two million, two hundred seventeen thousand, nine hundred forty-eight".