2218344 has 16 divisors (see below), whose sum is σ = 5545920. Its totient is φ = 739440.

The previous prime is 2218343. The next prime is 2218351. The reversal of 2218344 is 4438122.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 92431 = 2218344 / (2 + 2 + 1 + 8 + 3 + 4 + 4).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2218343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46192 + ... + 46239.

It is an arithmetic number, because the mean of its divisors is an integer number (346620).

2^2218344 is an apocalyptic number.

2218344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2218344 is an abundant number, since it is smaller than the sum of its proper divisors (3327576).

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

2218344 is a wasteful number, since it uses less digits than its factorization.

2218344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92440 (or 92436 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 2218344 is about 1489.4106216890. The cubic root of 2218344 is about 130.4196302012.

The spelling of 2218344 in words is "two million, two hundred eighteen thousand, three hundred forty-four".