1822138 has 8 divisors (see below), whose sum is σ = 2877120. Its totient is φ = 863100.

The previous prime is 1822123. The next prime is 1822147. The reversal of 1822138 is 8312281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23938 + ... + 24013.

It is an arithmetic number, because the mean of its divisors is an integer number (359640).

2^1822138 is an apocalyptic number.

1822138 is a deficient number, since it is larger than the sum of its proper divisors (1054982).

1822138 is a wasteful number, since it uses less digits than its factorization.

1822138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47972.

The product of its digits is 768, while the sum is 25.

The square root of 1822138 is about 1349.8659192675. The cubic root of 1822138 is about 122.1407048106.

The spelling of 1822138 in words is "one million, eight hundred twenty-two thousand, one hundred thirty-eight".