1822238 has 16 divisors (see below), whose sum is σ = 3012336. Its totient is φ = 819840.

The previous prime is 1822229. The next prime is 1822241. The reversal of 1822238 is 8322281.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2120 + ... + 2852.

It is an arithmetic number, because the mean of its divisors is an integer number (188271).

2^1822238 is an apocalyptic number.

1822238 is a deficient number, since it is larger than the sum of its proper divisors (1190098).

1822238 is a wasteful number, since it uses less digits than its factorization.

1822238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859.

The product of its digits is 1536, while the sum is 26.

The square root of 1822238 is about 1349.9029594752. The cubic root of 1822238 is about 122.1429391542.

The spelling of 1822238 in words is "one million, eight hundred twenty-two thousand, two hundred thirty-eight".