2218844 has 6 divisors (see below), whose sum is σ = 3882984. Its totient is φ = 1109420.

The previous prime is 2218837. The next prime is 2218861. The reversal of 2218844 is 4488122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277352 + ... + 277359.

It is an arithmetic number, because the mean of its divisors is an integer number (647164).

2^2218844 is an apocalyptic number.

It is an amenable number.

2218844 is a deficient number, since it is larger than the sum of its proper divisors (1664140).

2218844 is a wasteful number, since it uses less digits than its factorization.

2218844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554715 (or 554713 counting only the distinct ones).

The product of its digits is 4096, while the sum is 29.

The square root of 2218844 is about 1489.5784638615. The cubic root of 2218844 is about 130.4294280378.

The spelling of 2218844 in words is "two million, two hundred eighteen thousand, eight hundred forty-four".